Question

A rectangle has a height of 4x and a width of 3x+1

Answer 1

`12x {}^(2) + 4x`

Explanation:

Ok, so to find the area of a square or a rectangle we need to multiply the width by the height. Since we now both, we can create an expression.

`(3x + 1) + (4x)`

So now we can apply the distributive law/property to expand the expression.

`3x(4x) + 1(4x)`

Finally, simplify.

`12x {}^(2) + 4x`