Ehangu
2-2x-x^{2}
Enrhifo
-\left(x+1\right)^{2}+3
Graff
Rhannu
Copïo i clipfwrdd
-\left(x^{2}+2x+1\right)+3
Defnyddio'r theorem binomaidd \left(a+b\right)^{2}=a^{2}+2ab+b^{2} i ehangu'r \left(x+1\right)^{2}.
-x^{2}-2x-1+3
I ddod o hyd i wrthwyneb x^{2}+2x+1, dewch o hyd i wrthwyneb pob term.
-x^{2}-2x+2
Adio -1 a 3 i gael 2.
-\left(x^{2}+2x+1\right)+3
Defnyddio'r theorem binomaidd \left(a+b\right)^{2}=a^{2}+2ab+b^{2} i ehangu'r \left(x+1\right)^{2}.
-x^{2}-2x-1+3
I ddod o hyd i wrthwyneb x^{2}+2x+1, dewch o hyd i wrthwyneb pob term.
-x^{2}-2x+2
Adio -1 a 3 i gael 2.
Enghreifftiau
Hafaliad cwadratig
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y = 3x + 4
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699 * 533
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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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\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Terfynau
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