Multiply.
(3x + 2)(3x - 2)
a. x² + 12x- 4
b. 9x² – 12x - 4
c. 9x - 4
d. 9x² + 4

9x²-4

Step-by-step explanation:

To solve use the formula (known as the difference of squares) a²-b²=(a+b)(a-b) and substitute a with 3x and b with 2 and then substitute to find: (3x)²-2²= 9x²-4

Step-by-step explanation:

step 1

Find the slope

The formula to calculate the slope between two points is equal to

take the points

(-8,-15),(-3,0)

substitute in the formula

step 2

Find the equation in point slope form

we have

substitute

step 3

Convert to slope intercept form

apply distributive property right side