Question

Subtract x²+2x-3 from 7x²-4x+7​

Answer 1

Step-by-step explanation:

the answer is 6x² - 6x + 20

Answer 2

Step-by-step explanation:

(7x^²-4x+7) -(x^²+2x-3)

$7x {}^{2} - 4x + 7 - x {}^{2} - 2x + 3 \\ 7x {}^{2} - x {}^{2} - 4x - 2x + 7 + 3 \\ 6x {}^{2} - 6x + 10$