To subtract -4x^2 + 7x - 8 from 10x^2 + 3x + 9, we need to change the signs of each term in -4x^2 + 7x - 8 and then combine like terms:
10x^2 + 3x + 9
-(-4x^2 + 7x - 8)
= 10x^2 + 3x + 9 + 4x^2 - 7x + 8
= (10x^2 + 4x^2) + (3x - 7x) + (9 + 8)
= 14x^2 - 4x + 17
So the subtraction result is 14x^2 - 4x + 17.
Subtract - 4x ^ 2 + 7x - 8fo = 10x ^ 2 + 3x + 9
Make sure it's right please
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