Question

Simplify the product using FOIL.

(3x - 7 ) (3x - 5)
A. 9x² + 6x + 35
B. 9x² + 36x + 35
C. 9x²- 36x - 35
D. 9x² - 36x + 35

Answer 1

F) 3x*3x= 9x²
O) 3x*-5= -15x
I) -7*3x= -21x
L) -7*-5= 35
equation would be 9x²-36x+35

Answer 2

`9x^2-36x+35`

Explanation:

Simplify the product using FOIL.

(3x - 7 ) (3x - 5)

Apply FOIL method to multiply it

multiply 3x inside the second parenthesis and then multiply -7 inside the second parenthesis.

`(3x)(3x - 5)= 9x^2-15x`

`(-7)(3x - 5)= -21x+35`

Write all the terms together

`9x^2-15x-21x+35`

Combine like terms

`9x^2-36x+35`