Question

find the product using column method -9x²+11x+2 * 8x²+6x-7​

Answer 1

Answer:

-72x^4+34x^3+145x^2-65x-14

Step-by-step explanation:

(-9x^2+11x+2)(8x^2+6x-7)

-9x^2(8x^2+6x-7)+11x(8x^2+6x-7)+2(8x^2+6x-7)

-72x^4-54x^3+63x^2+88x^3+66x^2-77x+16x^2+12x-14

-72x^4+34x^3+145x^2-65x-14