Answer:
260 - 55(3)
55(3)
260 - 165
= 95
Step-by-step explanation:
Answer:
RATED R FLIMS?
Step-by-step explanation:
thats so bad!?!?>>BNSDGh why would you watch P O R N>!?>!M!NKHEdb
9x² - 49
(3x)² - (7)²
= (3x + 7)(3x - 7)
This type of factoring is called Difference of Two Squares
where x² - y² = (x + y)(x - y)
Square both sides
9(x + 2) = x + 4
Expand
9x + 18 = x + 4
Subtract x from both sides
9x + 18 - x = 4
Simplify 9x + 18 - x to 8x + 18
8x + 18 = 4
Subtract 18 from both sides
8x = 4 - 18
Simplify 4 - 18 to -14
8x = -14
Divide both sides by 8
x = -14/8
Simplify 14/8 to 7/4
<u>C. x = -7/4</u>
