Question

simplify: (x^2-2) (9x^2-2x+5)​

Answer 1

Answer:

9x^4−2x^3−13x^2+4x−10

Step-by-step explanation:

=(x^2+−2)(9x^2+−2x+5)

=(x^2)(9x2)+(x^2)(−2x)+(x^2)(5)+(−2)(9x^2)+(−2)(−2x)+(−2)(5)

=9x^4−2x^3+5x^2−18x^2+4x−10

=9x^4−2x^3−13x^2+4x−10