Question

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

Answer 1

`=color(blue)(9x^2+24x+16`

Explanation:

`(3x+4)^2 = color(blue)((3x+4)) * (3x+4)`

`= color(blue)((3x)) * (3x+4) +color(blue)((4))(3x+4)`
`=9x^2+12x+12x+16`
`=color(blue)(9x^2+24x+16`

Note:
The property:`color(blue)((a+b)^2=a^2+2ab+b^2` can be applied to the same expression