Solve x2 - 24x = - 80 by completing the square.

What is the solution set of the equation?

{2, 40}

{4, 20}

{5, 16}

{8, 10}

Question

Mathematics

Zachary Lawrence

16 February, 01:36

Solve x2 - 24x = - 80 by completing the square.

What is the solution set of the equation?

{2, 40}

{4, 20}

{5, 16}

{8, 10}

+1

Answers (2)

Know the Answer?

Teresa Hodge · Answer 1

{4.20}

Step-by-step explanation:

b on edg

Tessa Reyes · Answer 2

{4, 20}

Step-by-step explanation:

x2 - 24x = - 80

divide - 24 by 2 and square result get 144

x^2 - 24x + 144 = - 80 + 144

(x - 12) ^2 = 64

x - 12 = root (64)

x = 12 + 8 or x = 12 - 8

x = 20 or 4

Solve x2 - 24x = - 80 by completing the square.What is the solution set of the equation?{2, 40}{4, 20}{5, 16}{8, 10}

Solve x2 - 24x = - 80 by completing the square.

What is the solution set of the equation?

{2, 40}

{4, 20}

{5, 16}

{8, 10}