Evaluate
14+4x-49x^{2}
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14+4x-49x^{2}
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4x-7^{2}x^{2}+14
Expand \left(7x\right)^{2}.
4x-49x^{2}+14
Calculate 7 to the power of 2 and get 49.
4x-7^{2}x^{2}+14
Expand \left(7x\right)^{2}.
4x-49x^{2}+14
Calculate 7 to the power of 2 and get 49.
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