Area = base (height) 1/2
so you plug your numbers into the equation and solve
42 = 6(x) 1/2
42 = 3(x)
divide each side by 3
14 = x
1....Please make more sense
Answer:
x = -6 ±sqrt(251)
Step-by-step explanation:
3(x+6)^2=753
Divide each side by 3
3/3(x+6)^2=753/3
(x+6)^2=251
Take the square root of each side
sqrt((x+6)^2)=±sqrt(251)
x+6 = ±sqrt(251)
Subtract 6 from each side
x+6-6 = -6 ±sqrt(251)
x = -6 ±sqrt(251)