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Problemau tebyg o chwiliad gwe

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x^{2}-2x+1+\left(x+2\right)^{2}-\left(x-3\right)\left(x+3\right)-22
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+x^{2}+4x+4-\left(x-3\right)\left(x+3\right)-22
Defnyddio'r theorem binomaidd \left(a+b\right)^{2}=a^{2}+2ab+b^{2} i ehangu'r \left(x+2\right)^{2}.
2x^{2}-2x+1+4x+4-\left(x-3\right)\left(x+3\right)-22
Cyfuno x^{2} a x^{2} i gael 2x^{2}.
2x^{2}+2x+1+4-\left(x-3\right)\left(x+3\right)-22
Cyfuno -2x a 4x i gael 2x.
2x^{2}+2x+5-\left(x-3\right)\left(x+3\right)-22
Adio 1 a 4 i gael 5.
2x^{2}+2x+5-\left(x^{2}-9\right)-22
Ystyriwch \left(x-3\right)\left(x+3\right). Gellir trawsnewid lluosi yn wahaniaeth rhwng sgwariau drwy ddefnyddio’r rheol: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}. Sgwâr 3.
2x^{2}+2x+5-x^{2}+9-22
I ddod o hyd i wrthwyneb x^{2}-9, dewch o hyd i wrthwyneb pob term.
x^{2}+2x+5+9-22
Cyfuno 2x^{2} a -x^{2} i gael x^{2}.
x^{2}+2x+14-22
Adio 5 a 9 i gael 14.
x^{2}+2x-8
Tynnu 22 o 14 i gael -8.
x^{2}-2x+1+\left(x+2\right)^{2}-\left(x-3\right)\left(x+3\right)-22
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+x^{2}+4x+4-\left(x-3\right)\left(x+3\right)-22
Defnyddio'r theorem binomaidd \left(a+b\right)^{2}=a^{2}+2ab+b^{2} i ehangu'r \left(x+2\right)^{2}.
2x^{2}-2x+1+4x+4-\left(x-3\right)\left(x+3\right)-22
Cyfuno x^{2} a x^{2} i gael 2x^{2}.
2x^{2}+2x+1+4-\left(x-3\right)\left(x+3\right)-22
Cyfuno -2x a 4x i gael 2x.
2x^{2}+2x+5-\left(x-3\right)\left(x+3\right)-22
Adio 1 a 4 i gael 5.
2x^{2}+2x+5-\left(x^{2}-9\right)-22
Ystyriwch \left(x-3\right)\left(x+3\right). Gellir trawsnewid lluosi yn wahaniaeth rhwng sgwariau drwy ddefnyddio’r rheol: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}. Sgwâr 3.
2x^{2}+2x+5-x^{2}+9-22
I ddod o hyd i wrthwyneb x^{2}-9, dewch o hyd i wrthwyneb pob term.
x^{2}+2x+5+9-22
Cyfuno 2x^{2} a -x^{2} i gael x^{2}.
x^{2}+2x+14-22
Adio 5 a 9 i gael 14.
x^{2}+2x-8
Tynnu 22 o 14 i gael -8.