quadratic formula question

2008-07-17 1:55 am
solve the following equation by taking square roots

4(x^2+2)-25=0

回答 (2)

2008-07-17 2:01 am
✔ 最佳答案
4(x^2+2)-25=0
4(x^2+2)=25
(x^2+2)=25/4
x^2=(25/4)-2
x^2=17/4
x=sqrt(17)/2 or -sqrt(17)/2


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