Question

How do you write `10x(9x^2 + 6x + 7)` in standard form?

Answer 1

`=>y=90x^3+60x^2+70x`

Explanation:

Multiply everything inside the rackets by `10x`

`=>y=90x^3+60x^2+70x`

If it is required that the constant term is included then you have:

`=>y=90x^3+60x^2+70x+0`