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OpenStudy (anonymous):
what is the value of z so that -9 and 9 are both solutions of x^2+z=103? I got 22 but I'm not sure if its 22 or -22
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OpenStudy (anonymous):
@jagr2713 can you help me?
OpenStudy (anonymous):
Ill help
OpenStudy (anonymous):
22 :)
OpenStudy (anonymous):
x^2 + 22 = 103 subtract 22 from both sides x^2 = 81 sqrt both sides and you get-> x = plus or minus 9 :)
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