Enrhifo
\left(8x-11\right)\left(2x+3\right)
Ehangu
16x^{2}+2x-33
Graff
Rhannu
Copïo i clipfwrdd
25x^{2}-40x+16-\left(7-3x\right)^{2}
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(5x-4\right)^{2}.
25x^{2}-40x+16-\left(49-42x+9x^{2}\right)
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(7-3x\right)^{2}.
25x^{2}-40x+16-49+42x-9x^{2}
I ddod o hyd i wrthwyneb 49-42x+9x^{2}, dewch o hyd i wrthwyneb pob term.
25x^{2}-40x-33+42x-9x^{2}
Tynnu 49 o 16 i gael -33.
25x^{2}+2x-33-9x^{2}
Cyfuno -40x a 42x i gael 2x.
16x^{2}+2x-33
Cyfuno 25x^{2} a -9x^{2} i gael 16x^{2}.
25x^{2}-40x+16-\left(7-3x\right)^{2}
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(5x-4\right)^{2}.
25x^{2}-40x+16-\left(49-42x+9x^{2}\right)
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(7-3x\right)^{2}.
25x^{2}-40x+16-49+42x-9x^{2}
I ddod o hyd i wrthwyneb 49-42x+9x^{2}, dewch o hyd i wrthwyneb pob term.
25x^{2}-40x-33+42x-9x^{2}
Tynnu 49 o 16 i gael -33.
25x^{2}+2x-33-9x^{2}
Cyfuno -40x a 42x i gael 2x.
16x^{2}+2x-33
Cyfuno 25x^{2} a -9x^{2} i gael 16x^{2}.
Enghreifftiau
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\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]
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\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
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