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anonymous
 5 years ago
Did I do this correctly?
4x = ½(x^2 + 8x  20)
4x = ½x^2 + 4x  10
0 = ½x^2  10
10 = ½x^2
 
½ ½
5 = x^2
√5 = x
2.23 = x
anonymous
 5 years ago
Did I do this correctly? 4x = ½(x^2 + 8x  20) 4x = ½x^2 + 4x  10 0 = ½x^2  10 10 = ½x^2   ½ ½ 5 = x^2 √5 = x 2.23 = x

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0use this site: http://www.wolframalpha.com/input/?i=4x+%3D+%C2%BD%28x^2+%2B+8x++20%29

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i would leave it as x= (square root of) 5
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