SOLUTION: Calculate the value of the x-intercepts for the parabola y = (x+20)^2 -81

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Question 1083524: Calculate the value of the x-intercepts for the parabola y = (x+20)^2 -81
Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
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Calculate the value of the x-intercepts for the parabola y = (x+20)^2 -81.
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%28x%2B20%29%5E2-81=0
-
x%2B20=0%2B-+sqrt%2881%29
x%2B20=0%2B-+9
x=-20%2B-+9

system%28x=-29%2Cor%2Cx=-11%29