Quadratics Square Root

Solve by taking square roots:
5b² - 4 = 41

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no solution

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots:
5m² + 1 = 6

• m = 0

• m = 1 or -1

• m = √7

• m = 7/5 m = -7/5

Tags

CCSS.HSA-REI.B.4B

x² + 4 = 68

• ± 8

• ± √8

• 8

• ± 64

Tags

CCSS.8.EE.A.2

x² = 16

• ± 4

• ± 8

• 4

• 8

Tags

CCSS.8.EE.A.2

3x² - 1 = 14

• 5

• -√5

• -√5, √5

• √5

Tags

CCSS.8.EE.A.2

(x - 2) ² = 9

• ± 3

• 5  or  -1

• -5  or  1

• ± 9

Tags

CCSS.HSA-REI.B.4B

• {49,-49}

• {8,-8}

• {7,-7}

• No Solution

Tags

CCSS.8.EE.A.2

(x + 1) ² = 25

• ± 5

• 4  or  -6

• -4  or  6

• ± 4

Tags

CCSS.8.EE.A.2

Solve by taking square roots:
k² - 6 = 43

• k = √37

• k = 37 or - 37

• k = 7, k = -7

• no solution

Tags

CCSS.HSA-REI.B.4B

Solve
4m² - 100 = 0

• m=25, -25

• m=96

• m=5, -5

• m=-96

Tags

CCSS.8.EE.A.2