Enrhifo
-\left(x+y\right)^{2}+1
Ehangu
1-y^{2}-2xy-x^{2}
Rhannu
Copïo i clipfwrdd
1-\left(x^{2}+2xy+y^{2}\right)
Defnyddio'r theorem binomaidd \left(a+b\right)^{2}=a^{2}+2ab+b^{2} i ehangu'r \left(x+y\right)^{2}.
1-x^{2}-2xy-y^{2}
I ddod o hyd i wrthwyneb x^{2}+2xy+y^{2}, dewch o hyd i wrthwyneb pob term.
1-\left(x^{2}+2xy+y^{2}\right)
Defnyddio'r theorem binomaidd \left(a+b\right)^{2}=a^{2}+2ab+b^{2} i ehangu'r \left(x+y\right)^{2}.
1-x^{2}-2xy-y^{2}
I ddod o hyd i wrthwyneb x^{2}+2xy+y^{2}, dewch o hyd i wrthwyneb pob term.
Enghreifftiau
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Terfynau
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