Asked by amber
x^2=8x-9
solve by completing the square to obtain exact solutions
solve by completing the square to obtain exact solutions
Answers
Answered by
Reiny
x^2 - 8x + .... = -9 + ....
x^2 - 8x + 16 = -9 + 16
(x-4)^2 = 7
x-4 ± √7
x = 4 ± √7
x^2 - 8x + 16 = -9 + 16
(x-4)^2 = 7
x-4 ± √7
x = 4 ± √7
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