4 years ago

Solve x^2-8x=20 by completing the square. Which is the solution set of the equation?

Mathematics

1 answer:

uranmaximum [27]4 years ago

7 0

Step-by-step explanation:

x^2 - 8x = 20

1. Subtract 20 from both sides

x^2 - 8x - 20 = 20 - 20

2. Simplify

x^2 - 8x - 20 = 0

3. Factor the equation out by grouping

(x - 10)(x + 2) = 0

4. Change signs:

x = 10, x = -2

Hope This Helped!!

~Shane

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