Question

What is the result when the sum of 4x^2+8x-1 and 7x^2-3x+8 is multiplied by 5x^2 ?

Answer 1

55x^4+25x³+35x²

Explanation:

Let's make an equation :

(4x²+8x-1 + 7x²-3x+8 ) ×5x²

(11x²+5x+7)×5x²

Now we put 5x² in front and expand :

5x²(11x²+5x+7)

55x^4+25x³+35x²

Hope this helped and have a good day