Answered

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SOLVE EQUATION BY TAKING SQUARE ROOTS.
-100+81a^2=0

Sagot :

SDCInfinity

Answer:

a = ±10/9

Step-by-step explanation:

[tex]-100+81a^2=0\\81a^2=100\\a^2=\frac{100}{81}\\\sqrt{a^2}=\sqrt{\frac{100}{81} }\\a=10/9\\a=-10/9[/tex]

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