Answer:
Hello :
y = 2x² - x -6
y = 2 ( x² - 1/2 x - 3)
y = 2 (x² -1/2 x + 1/16 -1/16 -3)
y = 2 (( x - 1/4 )² - 49/16)..... the quadratic formula
y = 0 : ( x - 1/4 )² - 49/16 = 0
( x - 1/4 )² - (7/4)² = 0
( x -1/4-7/4)( x -1/4+7/4)=0
(x -2)(x + 3/2) = 0
x - 2 = 0 or x + 3/2 =0
x = 2 or x = - 3/2
Answer:
Step-by-step explanation:
All you gotta do is subtract - b + c from both sides then simplify.
Answer:
2 and 3 are correct, not sure if you plan on doing 1, in which case I'd help you
Answer: 36
Step-by-step explanation:
5(2)+3(-3)-20+3(2)-15(-3)+4
10-9-20+6+45+4
-19+55
36
