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pshichka [43]
3 years ago
10

- 81 = 0" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
OverLord2011 [107]3 years ago
8 0

Sum 81 to both sides to get


4x^2 = 81


Divide both sides by 4 to get


x^2 = \frac{81}{4} = \frac{9^2}{2^2}


Consider the square root of both sides. Note that this requires the \pm sign, since a^2=b^2 implies a=b, but also a=-b. So, the solutions are


x = \pm\sqrt{\frac{9^2}{2^2}} = \pm\frac{9}{2}

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<h3>How to determine the quotient?</h3>

The quotient expression is given as:

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