Solve Quadratics Using Square Roots

Solve using square roots.

• ± 1/4

• ± 9/36

• ± 1/2

• No real solution

Tags

CCSS.HSA-REI.B.4B

Solve by taking the square root:

x² = 49

• -7

• 7

• 49

• ±7

Tags

CCSS.HSA-REI.B.4B

x² -4 = 77

• 9

• -9

• No Real Solutions

• ±9

Tags

CCSS.8.EE.A.2

Solve for x.

x² = 36

• x = ± 6

• x = ± 18

• x = 6

• x = 18

Tags

CCSS.8.EE.A.2

• bx

• square roots

• cx

• discriminant

• quadratic formula

• Isolate the

• Take the square root of both sides.

• Eliminate the

Tags

CCSS.HSA-REI.B.4B

• {12.88,-12.88}

• {13.22,-13.22}

• {16}

• No Solution

Tags

CCSS.8.EE.A.2

Solve using square roots.

• ±81

• ±9

• ±3

• No real solution

Tags

CCSS.HSA-REI.B.4B

• bx

• square roots

• cx

• discriminant

• quadratic formula

• Isolate the

• Take the square root of both sides.

• Eliminate the

Tags

CCSS.HSA-REI.B.4B

• {6.78,-6.78}

• {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