Question

Which expression is equivalent to (2-3x) (2+3x) ?

Answer 1

`4-9x^(2)`

Explanation:

in the first parenthesis, multiply the FIRST number (2 - 3x) by the numbers in the OTHER parenthesis. (2 + 3x)

`(2-3x)(2+3x)`

it would look like:

`2(2) = 4\\2(3x) = 6x`

Next, multiply the SECOND number (2 - 3x) by the numbers in the OTHER parenthesis. (2 + 3x)

`-3x(2) = -6x\\-3x(3x) = 9x^2`

Now, add like terms. Your answer should either be:

`4+6x-6x+9^2` OR
`4 -9x^2`