Mathematics 8: Squares and Cubes
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Mathematics 8: Squares and Cubes

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Questions and Answers

What is the result of $a^2 - b^2$ when $a = 5$ and $b = 3$?

  • 2
  • 9
  • 8 (correct)
  • 6

    • Which expression represents the sum of two cubes, $x^3 + y^3$?

  • $(x - y)(x^2 + xy + y^2)$
  • $(x + y)(x^2 + xy + y^2)$ (correct)
  • $(x - y)(x^2 - xy + y^2)$
  • $(x + y)(x^2 - xy + y^2)$

    • If $x=2$ and $y=1$, what is the value of $x^3 - y^3$?

  • 9
  • 8
  • 7 (correct)
  • 6

    • Which of the following is the difference of squares for $9 - 4$?

    <p>$3^2 - 4^2$</p> Signup and view all the answers

    What is the formula for factoring $a^2 + b^2$?

    <p>$ a^2 + b^2 $ cannot be factored over the reals</p> Signup and view all the answers

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