Complete the square since can't factor
2/2=1
add 1 to both sides
x²+2x+1-6=1
factor perfect square
(x+1)²-6=1
add 6 to both sides
(x+1)²=7
sqrt both sides
x+1=+/-√7
minus 1 both sides
x=-1+/-√7
so x=-1+√7 or x=-1-√7
Answer:
wha?
Step-by-step explanation:
Answer:
f(x) = 9x^2-36x+37
Step-by-step explanation:
3(x-2)^2+1
(3x-6)^2+1
9x^2-36x+36+1
9x^2-36x+37
Wouldn't this be $90-$27 which is 63, 63 being the cost of your earrings
