Question

4x (2x® - 7x2 + x)

O 8x4 - 28x3+4x2
o 16x - 7x2 +4x
o 8x4 - 7x2 + x
o 16x4 - 3x3+4x2

Answer 1

8
`x^(4)`-28x³+4x²

Explanation:

4x(2x³-7x²+x)=

8
`x^(4)`-28x³+4x²

2x³ × 4x = 8
`x^(4)`

7x² × 4x = 28x³

x × 4x = 4x²

Answer 2

8x^4 - 28x^3 + 4x^2.

Explanation:

4x(2x^3 - 7x^2 + x)

= 4 * 2x^3 + 4x*-7x^2 + 4x*x

= 8x^4 - 28x^3 + 4x^2.