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Rational Exponents

Question 2 • Adv. Algebra II S2 Original

Simplify the expression.7x² + 3 - 5(x² - 4)

Answer
A
2x² - 17
B
2x² - 1
C
2x² + 23
D
25x²

Explanation

Distribute −5 across the parentheses: −5(x² − 4) = −5x² + 20. Then combine like terms: 7x² − 5x² = 2x², and 3 + 20 = 23. The simplified expression is 2x² + 23, choice C.

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