Quadratice by Square Root

3x² = 12

• ± 2
• 2
• ± √12
• ± 4

x² + 4 = 68

• ± 8
• ± √8
• 8
• ± 64

7x² + 1 = 8

• ± 1
• ± 7
• ± √7
• ± 8

(x + 1) ² = 25

• ± 5
• 4  or  -6
• -4  or  6
• ± 4

16a² - 9 = 0

• a = ^-3/₄, ³/₄

• a = ^-4/₃, ⁴/₃

• a = ^-9/₁₆, ⁹/₁₆

• a = ^-16/₉, ¹⁶/₉

5b² - 4 = 41

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no solutionb

5m² + 1 = 6

• m = 0

• m = 1 or -1

• m = √7

• m = 7/5 m = -7/5

3 + 9r² = 12

• r = 0

• no solution

• r = 3, r = -3

• r = 1, r = -1

• ±72

• ±12

• 12

• No real solution

4m² - 100 = 0

• m=25, -25

• m=96

• m=5, -5

• m=-96