What is the difference when 2x2 – 3x + 11 is subtracted from 4x2 + 7x – 45?
a. 2x2 + 10x – 34 b. 2x2 + 10x – 56
c. 2x2 – 10x – 34 d. -2x2 – 10x + 56
a. 2x2 + 10x – 34 b. 2x2 + 10x – 56
c. 2x2 – 10x – 34 d. -2x2 – 10x + 56
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Answer:
b. 2x² + 10x - 56
Step-by-step explanation:
(4x² + 7x ₋ 45) - (2x² - 3x + 11)
= 4x² + 7x - 45 - 2x² + 3x - 11
= 2x² + 7x - 45 + 3x - 11
= 2x² + 10x - 56
Therefore the correct answer is b. 2x² + 10x - 56
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