Evaluate
\left(x+3\right)^{2}-5
Expand
x^{2}+6x+4
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x^{2}+6x+9-5
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(x+3\right)^{2}.
x^{2}+6x+4
Subtract 5 from 9 to get 4.
x^{2}+6x+9-5
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(x+3\right)^{2}.
x^{2}+6x+4
Subtract 5 from 9 to get 4.
Examples
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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