Question

How do you write `4x^2 + x 5- 12 + 6x` in standard form?

Answer 1

`4x^2+11x-12`

Explanation:

`color(blue)("Preamble about multiplication")`

`2xx5` gives the same answer as `5xx2`

so `2xx5=5xx2`

so `x5=x xx5 = 5xx x = 5x`
'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Write as `4x^2+5x-12+6x`

Regrouping `->4x^2+5x+6x-12`

`4x^2+11x-12`