Solve by Factoring & Square Root

Solve the equation by factoring.
x² - 35x - 36

• -1, 36
• 1, -36
• -6, 6
• -6

Tags

CCSS.HSA-REI.B.4B

Solve by factoring: x² - 9x + 20 = 0

• x = -4 and x = -5

• x = 20 and x = -9

• x = 4 and x = 5

• x = -4 and x = 5

Tags

CCSS.HSA-REI.B.4B

Solve by factoring: 2x² - 5x - 12 = 0

• x = -4 and x = -6

• x = 4 and x = -3/2

• x = 4 and x = 6

• x = -4 and x = 3/2

Tags

CCSS.HSA-REI.B.4B

x² + 15x + 44 = 0

• {-8, 2}
• {-7, 5}
• {-11, -4}
• {-11}

Tags

CCSS.HSA-REI.B.4B

Simplify:

√80

• 4√5

• 2√20

• 10√8

• 8√10

Simplify:

-3√50

• -30√5

• -15√10

• -75√2

• -15√2

Solve.   x² = √-36

• x = ± 6
• x = 6i
• x = ± 6i
• x = i√6

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve.  x² = √-45

• x = ± 3√5
• x = 9i√5
• x = ± 9√5
• x = ± 3i√5

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

• 2i√6

• 8i√3

• -2√6

• -2i√6