Answer:
smaller x =-1/2
larger x = 7
Step-by-step explanation:
(x-7)(-4x - 2) = 0
Using the zero product property
(x-7)=0 (-4x - 2) = 0
x-7+7 = 0+7 -4x-2-2 =0+2
x=7 -4x =2
-4x/-4 = 2/-4
x = -1/2
Answer:
D. 3x² + 19x - 14
Step-by-step explanation:
Use FOIL to find the answer.
First: x * 3x = 3x²
Outer: -2 * x = -2x
Inner: 3x * 7 = 21x
Last: 7 * -2 = -14
Form the equation:
3x² - 2x + 21x - 14
Combine like terms.
3x² + 19x - 14
90 is 36% of what number? 250.
