Evaluate
-\left(x+1\right)\left(x+3\right)
Expand
-x^{2}-4x-3
Graph
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-\left(x^{2}+4x+4\right)+1
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(x+2\right)^{2}.
-x^{2}-4x-4+1
To find the opposite of x^{2}+4x+4, find the opposite of each term.
-x^{2}-4x-3
Add -4 and 1 to get -3.
-\left(x^{2}+4x+4\right)+1
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(x+2\right)^{2}.
-x^{2}-4x-4+1
To find the opposite of x^{2}+4x+4, find the opposite of each term.
-x^{2}-4x-3
Add -4 and 1 to get -3.
Examples
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y = 3x + 4
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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