Answer:
x = -7 ±3i
Step-by-step explanation:
(x+7)^2+9=0
Subtract 9 from each side
(x+7)^2+9-9=0-9
(x+7)^2=-9
Take the square root of each side
sqrt((x+7)^2) = ±sqrt(-9)
We know sqrt(ab) = sqrt(a) sqrt(b)
x+7 = ±sqrt(-1) sqrt(9)
We know that sqrt(-1) is the imaginary number i
x+7 = ±i *3
x+7 =±3i
Subtract 7 from each side
x+7-7 = -7 ±3i
x = -7 ±3i
Answer:
{48, 64, 81}
Step-by-step explanation:
The answer is infinetely many solutions.
6+6=6+6
12=12
I have no idea but I googled and I got 0.6 I hope this helps!
6z - 4 = 60
6z = 64
z = 10.66666666666666 (repeating)