3(2x+2)+x+5=-10
6x+6+x+5=-10
7x+11=-10
7x=-21
x=-3
-3 (-6=82)+8
im pretty sure like 80%
Answe the awnser is b
Step-by-step explanation:
Step-by-step explanation:
To complete the square, take half of the second coefficient, square it, then add the result to both sides.
(-8/2)² = (-4)² = 16
x² − 8x + 16 = 9 + 16
Solving:
(x − 4)² = 25
x − 4 = ±5
x = 4 ± 5
x = -1 or 9
<span>4.7, 8.51, 6.5, 7.42, 9.64, 7.2, 9.3
4.7 6.5 7.2 7.42 8.52 9.3 9.64
7.42 is the median.</span>
