Unit 2 Quiz 3 Part A Retake

Solve the equation by factoring: x^2 + 10x = 24. Simplify all irrational solutions.

• x = {-5 ± √49}

• x = {-12, 2}

• x = {-7}

• x = {3 ± 4√2

Tags

CCSS.HSA-REI.B.4B

Solve the equation by factoring: 4x^2 + 5 = 6 . Simplify all irrational solutions.

• x = ± 1/2
• x = -5 ± √49

• x = ± √49

• x = {3/2, - 1/2}

Tags

CCSS.HSA-REI.B.4B

Solve the equation by factoring: $ x^2 + 18x = 4x - 49 $. Simplify all irrational solutions.

Tags

CCSS.HSA-REI.B.4B

Solve the equation by using the quadratic formula: $ x^2 - 6x - 23 = 0 $. Simplify all irrational solutions.

• x = 3 ± √32
• x = -5 ± √49

• x = 3 ± 4√2

• x = 5 ± √42

Tags

CCSS.HSA-REI.B.4B

Solve the equation by factoring: x^2 - 9x = 0. Simplify all irrational solutions.

Tags

CCSS.HSA-REI.B.4B

Solve the equation by factoring: 5x^2 + 14x = x + 6. Simplify all irrational solutions.

• x = ± 3
• x = -3, 2/5

• x = ± 2/5

• x = -11, -7

Tags

CCSS.HSA-REI.B.4B

Solve for x using the quadratic formula: 2x^2 - 10x + 11 = 0

• x = (10 + √5) / 4, x = (10 - √5) / 4
• x = 2, x = 3
• x = 1, x = 5
• x = (5 + √3) / 2, x = (5 - √3) / 2

Tags

CCSS.HSA-REI.B.4B

Solve for x by factoring: 4x^2 - 24 = 20x

• x = 6, x = -1
• x = 3
• x = 5
• x = 0

Tags

CCSS.HSA-REI.B.4B

Solve for x using the quadratic formula: -x^2 + 8 = x - 3

• x = (-2 + √5) / 2
• x = (1 - 3√5) / 2
• x = (1 + 3√5) / 2
• x = (-1 + 3√5) / 2 or x = (-1 - 3√5) / 2

Tags

CCSS.HSA-REI.B.4B

Which equation has the solutions of -2 and 3?

• x^2 + x - 6 = 0
• x^2 - x - 6 = 0
• x^2 + 5x + 6 = 0
• x^2 - 5x + 6 = 0

Tags

CCSS.HSA-REI.B.4B