Solving Quadratics using Square Root

• {49,-49}

• {8,-8}

• {7,-7}

• No Solution

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

• {6.78,-6.78}

• {8,-8}

• {7,-7}

• No Solution

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

x² = 16

• ± 4
• ± 8
• 4
• 8

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

3x² = 12

• ± 2
• 2
• ± √12
• ± 4

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4

-5x² = -50

• ± 5
• ± 10
• ± √10
• -10

Tags

CCSS.8.EE.A.2

7x² + 1 = 8

• ± 1
• ± 7
• ± √7
• ± 8

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4

(x + 1) ² = 25

• ± 5
• 4  or  -6
• -4  or  6
• ± 4

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

Solve by taking square roots:
k² - 6 = 43

• k = √37
• k = 37 or - 37
• k = 7, k = -7
• no solution

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

If the graph of a quadratic does not intercept the x-axis at any point, then it has:

• 1 Real Solution
• 2 Real Solutions
• Half a Solution
• No Real Solution

Tags

CCSS.HSF-IF.C.7A

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.CED.A.1

CCSS.HSA.REI.A.2

CCSS.HSA.REI.B.4