Question

2 (x²+7) ² - 8(x²+7) (2x-1)- 5 (2x-1)​

Answer 1

Step-by-step explanation:

2(x^4+ 49+2(7)x^2)-8(2x^3-x^2+14x-7)-10x + 5

2(x^4+ 49+14x^2)-16x^3+8x^2-112x+ 56-10x + 5

2x^4+ 98 +28x^2-16x^3+8x^2-112x+ 56-10x + 5

2x^4 -16x^3 +28x^2+8x^2-112x-10x+ 98 + 56 + 5

2x^4 -16x^3 +36x^2-122x+ 159