Enrhifo
5\left(x^{2}-y^{2}\right)
Ehangu
5x^{2}-5y^{2}
Rhannu
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\left(3x-2y\right)^{2}-\left(2x-3y\right)\left(2x-3y\right)
Lluosi 3x-2y a 3x-2y i gael \left(3x-2y\right)^{2}.
\left(3x-2y\right)^{2}-\left(2x-3y\right)^{2}
Lluosi 2x-3y a 2x-3y i gael \left(2x-3y\right)^{2}.
9x^{2}-12xy+4y^{2}-\left(2x-3y\right)^{2}
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(3x-2y\right)^{2}.
9x^{2}-12xy+4y^{2}-\left(4x^{2}-12xy+9y^{2}\right)
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(2x-3y\right)^{2}.
9x^{2}-12xy+4y^{2}-4x^{2}-\left(-12xy\right)-9y^{2}
I ddod o hyd i wrthwyneb 4x^{2}-12xy+9y^{2}, dewch o hyd i wrthwyneb pob term.
9x^{2}-12xy+4y^{2}-4x^{2}+12xy-9y^{2}
Gwrthwyneb -12xy yw 12xy.
5x^{2}-12xy+4y^{2}+12xy-9y^{2}
Cyfuno 9x^{2} a -4x^{2} i gael 5x^{2}.
5x^{2}+4y^{2}-9y^{2}
Cyfuno -12xy a 12xy i gael 0.
5x^{2}-5y^{2}
Cyfuno 4y^{2} a -9y^{2} i gael -5y^{2}.
\left(3x-2y\right)^{2}-\left(2x-3y\right)\left(2x-3y\right)
Lluosi 3x-2y a 3x-2y i gael \left(3x-2y\right)^{2}.
\left(3x-2y\right)^{2}-\left(2x-3y\right)^{2}
Lluosi 2x-3y a 2x-3y i gael \left(2x-3y\right)^{2}.
9x^{2}-12xy+4y^{2}-\left(2x-3y\right)^{2}
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(3x-2y\right)^{2}.
9x^{2}-12xy+4y^{2}-\left(4x^{2}-12xy+9y^{2}\right)
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(2x-3y\right)^{2}.
9x^{2}-12xy+4y^{2}-4x^{2}-\left(-12xy\right)-9y^{2}
I ddod o hyd i wrthwyneb 4x^{2}-12xy+9y^{2}, dewch o hyd i wrthwyneb pob term.
9x^{2}-12xy+4y^{2}-4x^{2}+12xy-9y^{2}
Gwrthwyneb -12xy yw 12xy.
5x^{2}-12xy+4y^{2}+12xy-9y^{2}
Cyfuno 9x^{2} a -4x^{2} i gael 5x^{2}.
5x^{2}+4y^{2}-9y^{2}
Cyfuno -12xy a 12xy i gael 0.
5x^{2}-5y^{2}
Cyfuno 4y^{2} a -9y^{2} i gael -5y^{2}.
Enghreifftiau
Hafaliad cwadratig
{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Hafaliad llinol
y = 3x + 4
Rhifyddeg
699 * 533
Matrics
\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]
Hafaliad ar y pryd
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Gwahaniaethu
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integreiddiad
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Terfynau
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}