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Blababa [14]
4 years ago
8

Solve the equation. If necessary round to the nearest tenth 4x^2=81

Mathematics
1 answer:
il63 [147K]4 years ago
5 0
4x^2=81 \\ 
x^2=81/4 \\ x^2 = 20.25 \\ x=б \sqrt{20.25}  \\ x=б4.5


<span>D. 4.5, -4.5</span>
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