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OpenStudy (danielbarriosr1):
Someone please explain me how to solve this
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OpenStudy (danielbarriosr1):
\[25x^2-81=0\]
OpenStudy (lieutenantgeneral):
25x^2 = 81 (5x - 9) (5x + 9) = 0 x = 9/5
OpenStudy (danielbarriosr1):
And the other one?
OpenStudy (danielbarriosr1):
negative?
OpenStudy (danielbarriosr1):
Got it
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