Question

Subtract the polynomials.

Answer 1

Explanation:

`(4 {x}^(2) - 3x - 4) - (3 {x}^(2) + 4x - 8) \\ \\ = 4 {x}^(2) - 3x - 4 - 3 {x}^(2) - 4x + 8 \\ \\ = 4 {x}^(2) - 3 {x}^(2) - 3x - 4x - 4 + 8 \\ \\ = {x}^(2) - 7x + 4`

Thus option B is the correct answer.

Answer 2

B

Explanation:

Given

(4x² - 3x - 4) - (3x² + 4x - 8) ← distribute by - 1

= 4x² - 3x - 4 - 3x² - 4x + 8 ← collect like terms

= x² - 7x + 4 → B