Question

Q.no.3: Subtract x? - 3x2 + 6x from - 7x3 – 5x2 - 6x​

Answer 1

-7x3-5x2-6x-x³+3x2-6x

-8x³-2x²-12x ans

Answer 2

Step-by-step explanation:

$-7x^{3} - 5x^{2} - 6x -(x- 3x^{2}+6x)\\= -7x^{3} - 5x^{2} - 6x - x +3x^{2}-6x\\= -7x^{3} - 5x^{2}+3x^{2}- 6x - x -6x\\= -7x^{3} -2x^{2} -13x (Ans)$