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Questions and Answers
Which mathematical expression represents the sum of 7 and 5 multiplied by 9?
What is the result of $8(4 - 2) + 10$?
If $x = 3$, what is the value of the expression $2x^2 + 4x - 6$?
What does the expression $5(a + b) - 3b$ simplify to?
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Which of the following is the correct factorization of $x^2 - 9$?
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Study Notes
Mathematical Expressions
- The sum of 7 and 5 multiplied by 9 is represented by the expression: (7 + 5) * 9.
- The result of 8(4 - 2) + 10 is 26.
- The value of the expression $2x^2 + 4x - 6$ when $x = 3$ is 24.
- The expression $5(a + b) - 3b$ simplifies to 5a + 2b.
- The correct factorization of $x^2 - 9$ is (x + 3)(x - 3). This follows the difference of squares pattern: a² - b² = (a + b)(a - b).
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Description
Test your understanding of algebraic expressions with this quiz. You'll solve various problems involving sums, products, and simplifications. Perfect for reinforcing key algebra concepts taught in the 10th-grade curriculum.
