Evaluate
2\left(\left(2p-q-3\right)\left(4p-3q-7\right)-p\right)
Expand
16p^{2}-20pq-54p+6q^{2}+32q+42
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-2p+\left(4p-2q-6\right)\left(4p-3q-7\right)
Use the distributive property to multiply 2 by 2p-q-3.
-2p+16p^{2}-12pq-28p-8qp+6q^{2}+14q-24p+18q+42
Apply the distributive property by multiplying each term of 4p-2q-6 by each term of 4p-3q-7.
-2p+16p^{2}-20pq-28p+6q^{2}+14q-24p+18q+42
Combine -12pq and -8qp to get -20pq.
-2p+16p^{2}-20pq-52p+6q^{2}+14q+18q+42
Combine -28p and -24p to get -52p.
-2p+16p^{2}-20pq-52p+6q^{2}+32q+42
Combine 14q and 18q to get 32q.
-54p+16p^{2}-20pq+6q^{2}+32q+42
Combine -2p and -52p to get -54p.
-2p+\left(4p-2q-6\right)\left(4p-3q-7\right)
Use the distributive property to multiply 2 by 2p-q-3.
-2p+16p^{2}-12pq-28p-8qp+6q^{2}+14q-24p+18q+42
Apply the distributive property by multiplying each term of 4p-2q-6 by each term of 4p-3q-7.
-2p+16p^{2}-20pq-28p+6q^{2}+14q-24p+18q+42
Combine -12pq and -8qp to get -20pq.
-2p+16p^{2}-20pq-52p+6q^{2}+14q+18q+42
Combine -28p and -24p to get -52p.
-2p+16p^{2}-20pq-52p+6q^{2}+32q+42
Combine 14q and 18q to get 32q.
-54p+16p^{2}-20pq+6q^{2}+32q+42
Combine -2p and -52p to get -54p.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}