x2 + 49 = 0 ∴ x2 = -49 ∴ x = 7i
x = sq root of 36x = 6x = -6
x = 6 or x = -6 This is because a negative multiplied by a negative gives a positive.
x2≤64
x=18
x2 + 49 = 0 ∴ x2 = -49 ∴ x = 7i
x = sq root of 36x = 6x = -6
Using the quadratic formula, I found the solution set is x=2,x=-9
x = 6 or x = -6 This is because a negative multiplied by a negative gives a positive.
x2≤64
if x2 + 7 = 37, then x2 = 29 and x = ±√29
x=18
x2-5x-36 = (x-9(x+4) when factored
-4 and 4
8
do it yourself
(-4,6)