Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$49x^{2}+\frac{1}{49x^{2}}-$$

Answer

$$198*x^2-1$$

Solution


Collect like terms.
\[(49{x}^{2}+149{x}^{2})-1\]
Simplify.
\[198{x}^{2}-1\]
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