Question

How do you multiply `3x(5x^2-x+4)`?

Answer 1

`15x^3-3x^2+12x`

Explanation:

We need to distribute the `3x` to all terms in the parenthesis. We essentially have

`color(blue)(3x)(5x^2)-color(blue)(3x)(x)+color(blue)(3x)(4)`

Notice, the `3x` is being multiplied by all terms. We get

`bar(ul(|color(white)(2/2)15x^3-3x^2+12xcolor(white)(2/2)|))`

as our final answer.

Hope this helps!