Evaluate
\left(h+1\right)\left(2z+h\right)
Expand
2hz+2z+h^{2}+h
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z^{2}+2zh+h^{2}+z+h-z^{2}+z
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(z+h\right)^{2}.
2zh+h^{2}+z+h+z
Combine z^{2} and -z^{2} to get 0.
2zh+h^{2}+2z+h
Combine z and z to get 2z.
z^{2}+2zh+h^{2}+z+h-z^{2}+z
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(z+h\right)^{2}.
2zh+h^{2}+z+h+z
Combine z^{2} and -z^{2} to get 0.
2zh+h^{2}+2z+h
Combine z and z to get 2z.
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y = 3x + 4
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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