Solve by Square Root
16x2 - 121 = 0
±11/4
x2 + 5x = 0
0 or -5
x2 + 2x - 80 = 0
-10 or 8
x2 - 16x + 48 = 0
12 or 4
4x2 + 12x + 5 = 0
-1/2 or -5/2
100x2 - 9 = 0
±3/10
x2 - 2x = 0
0 or 2
x2 + x - 30 = 0
-6 or 5
x2 + 6x - 55 = 0
-11 or 5
4x2 - 28x + 45 = 0
9/2 or 5/2
(x - 2)2 - 43 = 21
10 or -6
x2 + 3x = 0
0 or -3
x2 + 4x - 32 = 0
-8 or 4
x2 - 2x - 35 = 0
7 or -5
2x2 - 16x - 4 = 0
4±3√2
(x + 10)2 - 8 = 8
-6 or -14
2x2 - 4x = 0
0 or 2
x2 + 10x + 24 = 0
-4 or -6
x2 + 16x - 22 = 0
±√86 - 8
4x2 - 36x + 85 = 0
(9±2i)/2
(x + 10)2 - 12 = 13
-5 or -15
12x2 + 30x = 0
0 or -5/2
x2 + 17x + 72 = 0
-8 or -9
x2 - 12x + 26 = 0
±√10 + 6
4x2 - 12x + 17 = 0
(3±2i√2)/2