Algebra Class 10: Exponents and Index Laws
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Questions and Answers

What is the simplified form of $(a^2 b^3) imes (b^2)$?

  • a^1 b^3
  • a^2 b^6
  • a^2 b^5 (correct)
  • a^2 b^1

What is the result of simplifying $(p^4) imes (q^3)$?

  • p^4 q^3 (correct)
  • p^7 q^3
  • p^4 + q^3
  • p^4 q^4

When simplifying $(f^8)/(f^3)$, what is the result?

  • f^5 (correct)
  • f^11
  • f^3
  • f^8

What is the simplified version of $(3w^9 q^2) imes (2w^3)$?

<p>6w^{12}q^2 (B)</p> Signup and view all the answers

What happens to the expression $(g^3 h^2)^{2}$ when simplified?

<p>g^6 h^4 (B)</p> Signup and view all the answers

What is the simplified form of $(2a) imes (3a^2)$?

<p>6a^3 (C)</p> Signup and view all the answers

What is the result of simplifying the expression $(e^2)^{3}$?

<p>e^6 (B)</p> Signup and view all the answers

When simplifying $(f^4) imes (f^8) imes (f^2)$, what is the result?

<p>f^{14} (A)</p> Signup and view all the answers

What is the simplified form of $(−1)^6$?

<p>1 (D)</p> Signup and view all the answers

Which statement correctly explains why Jo's assertion that $−x^2$ is equivalent to $(−x)^2$ is incorrect?

<p>$−x^2$ means $-(x^2)$, not $(-x)^2$. (A)</p> Signup and view all the answers

What is the correct calculation for $54$?

<p>512 (C)</p> Signup and view all the answers

When simplifying $8^x = 32$, what base do both sides share after simplification?

<p>2 (C)</p> Signup and view all the answers

Which of the following is true regarding the reason all three equations ($8^x = 32$, $27^x = 243$, $1000^x = 100000$) have the same solution?

<p>Each equation simplifies to the same base. (D)</p> Signup and view all the answers

What is the simplified form of $r^6 \div r^4$?

<p>$r^3$ (D)</p> Signup and view all the answers

What is the simplified form of $(a^3 \div a^2)$?

<p>$a^1$ (D)</p> Signup and view all the answers

What is the result of $(m^8 \div m^3)$?

<p>$m^5$ (D)</p> Signup and view all the answers

If $(p^9 \div p^6)$ is simplified, what is the result?

<p>$p^3$ (B)</p> Signup and view all the answers

If you rewrite the expression $47 \times 47 \times 47 \times 47 \times 47$ using an exponent, what is the exponent?

<p>5 (C)</p> Signup and view all the answers

What is the result of $(n^5 \div n^6)$?

<p>$n^{-1}$ (B)</p> Signup and view all the answers

What is the simplified form of $(b^4 \div b^6)$?

<p>$b^{-2}$ (C)</p> Signup and view all the answers

What is the outcome of $(f^7 \div f^2)$?

<p>$f^5$ (C)</p> Signup and view all the answers

What is the simplified form of $3^2 \times 3^4$?

<p>$3^6$ (A)</p> Signup and view all the answers

What is the simplified result of $(g^7) \times (g^9)$?

<p>$g^{16}$ (D)</p> Signup and view all the answers

What is the result of $(2d^7) \times (3d^2)$?

<p>$6d^9$ (C)</p> Signup and view all the answers

What is the simplified form of $(10r^2) \times (2r^3)$?

<p>$20r^5$ (A)</p> Signup and view all the answers

What does $(p^7) \div (p^2)$ simplify to?

<p>$p^5$ (C)</p> Signup and view all the answers

What is the simplified result of $(t^7) \times (t^3)$?

<p>$t^{10}$ (D)</p> Signup and view all the answers

Which of the following is the result of $(3a^2) \times (2a^6)$?

<p>$6a^8$ (B)</p> Signup and view all the answers

What is the simplified form of $(w^5) \times (p^7)$?

<p>$w^5p^7$ (C)</p> Signup and view all the answers

Study Notes

Simplifying Algebraic Products and Quotients

  • When multiplying terms with the same base, add the exponents.
  • When dividing terms with the same base, subtract the exponents.
  • When raising a term to a power, multiply the exponents.

Simplifying Algebraic Terms with Powers

  • (e^2)^3 = e^(2 * 3) = e^6 (Example of simplifying a term raised to a power)
  • (a^2 b^3)^4 = a^(2 * 4) b^(3 * 4) = a^8 b^12 (Example of simplifying a product of terms raised to a power)
  • (3w^9 q^2)^4 = 3^4 w^(9 * 4) q^(2 * 4) = 81w^36 q^8 (Example of simplifying a term with a coefficient raised to a power)

Understanding Index Laws

  • Index laws allow for simplification of expressions with exponents.
  • Multiplication of terms with the same base: a^m x a^n = a^(m + n)
  • Division of terms with the same base: a^m ÷ a^n = a^(m - n)
  • Power of a power: (a^m)^n = a^(m x n)

Negative Exponents

  • When raising -1 to a positive power, the result alternates between -1 and 1.
  • (-1)^10 = 1 (Example of raising -1 to an even power)
  • (-1)^7 = -1 (Example of raising -1 to an odd power)

Solving Equations with Exponents

  • 8^x = 32 can be rewritten as 2^(3x) = 2^5. Therefore, 3x = 5 and x = 5/3.
  • All equations in the form a^x = a^y have the same solution, x = y. This is because the base is the same.

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Description

This quiz covers key principles of simplifying algebraic products and quotients, particularly focusing on index laws and the treatment of exponents. Test your understanding of how to manipulate terms with the same base, including the rules for multiplication, division, and powers. Ideal for students in Grade 10 Algebra.

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