Evaluate
\frac{1}{2}+x-4x^{2}
Expand
\frac{1}{2}+x-4x^{2}
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\frac{1}{2}+2x\times \frac{1}{2}-4x^{2}
Use the distributive property to multiply 2x by \frac{1}{2}-2x.
\frac{1}{2}+x-4x^{2}
Cancel out 2 and 2.
\frac{1}{2}+2x\times \frac{1}{2}-4x^{2}
Use the distributive property to multiply 2x by \frac{1}{2}-2x.
\frac{1}{2}+x-4x^{2}
Cancel out 2 and 2.
Examples
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Limits
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