Question

X to the second - 6x+9=25 value of x

Answer 1

-8/3 or -2.66666 or -2 2/3

Explanation:

Move constant (+9) to the right side and change its sign (25 - 9)

Then subtract those numbers (=16)

Divide both sides by -6

Answer 2

-2, 8 is your answer

Explanation:

x² - 6x + 9 = 25

First, set the equation equal to 0. Subtract 25 from both sides

x² - 6x + 9 (-25) = 25 (-25)

x² - 6x + 9 - 25 = 0

x² - 6x - 16

Do Reverse FOIL

x² - 6x - 16

x -8

x 2

(x - 8)(x + 2) = 0

Solve for x. Set each parenthesis = 0

x - 8 = 0

x + 2 = 0

Isolate the x in both scenarios

x - 8 = 0

x - 8 (+8) = 0 (+8)

x = 8

x + 2 = 0

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

x = 0 - 2

x = -2

The values of x is -2, 8

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