Find the roots of the quadratic equation x^2 – 8x = 9 by completing the square. Show your work.
1 answer:
X² - 8x = 9
x² - 8x - 9 = 0
x² + x - 9x - 9 = 0
x(x + 1) -9(x + 1) = 0
(x+1)(x-9) = 0
x = -1 or 9
In short, Your Answers would be -1 & 9
Hope this helps!
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I am not sure but hope it helped!