Solve by Factoring (Any Method

Solve
3x² + 27 = 0

• x = 3, -3
• x = 3i, -3i
• x = 3
• Not Factorable

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve
x⁴ - 10x² + 24=0

• (x²-6)(x²+4)
• x = √4, 2i
• x = ±√6, 2, -2
• x= √6, -2, 2

Solve
4x³ = -20x²

• x = 0, -5
• x = 5
• x = -5
• Not Factorable

Tags

CCSS.HSA-REI.B.4B

Solve
15x² - 7x = 2

• x = 10, -3
• x = -2/3, 1/5
• x = 2/3, -1/5
• x = -10, 3

Solve
x⁴ - 81 = 0

• x = 3, -3
• x = 3, -3, 3i
• x = 3, -3, 3i, -3i
• x = 9, 9i

Solve
x³ = 22x² - 112x

• x = 8, 14
• x = -8, -14
• x = 0, 8, 14
• x = 0, -8, -14

Solve
x⁴ + 25x² + 144 = 0

• x = 3, -3, -4, 4
• x = 3i, -3i, -4i, 4i
• x = -9, -16
• x = -9i, -16i

Solve
7x² = -21x

• x = 3
• x = -3
• x = 0, 3
• x = 0, -3

Tags

CCSS.HSA-REI.B.4B

Solve
12x² - 2x = 80

• x = -30, 16
• x = 30, -16
• x = -8/3, 5/2
• x = 8/3, -5/2

Solve 
x³ - 2x² - 4x + 8 = 0

• x = 2, -2
• x = 2i, -2i
• x = 2
• Not Factorable

Tags

CCSS.HSA.APR.B.2

CCSS.HSA.APR.B.3