Enrhifo
-64x^{2}+17x-2
Ehangu
-64x^{2}+17x-2
Graff
Rhannu
Copïo i clipfwrdd
-\left(1-16x+64x^{2}\right)-1+x
Defnyddio'r theorem binomaidd \left(a+b\right)^{2}=a^{2}+2ab+b^{2} i ehangu'r \left(-1+8x\right)^{2}.
-1+16x-64x^{2}-1+x
I ddod o hyd i wrthwyneb 1-16x+64x^{2}, dewch o hyd i wrthwyneb pob term.
-2+16x-64x^{2}+x
Tynnu 1 o -1 i gael -2.
-2+17x-64x^{2}
Cyfuno 16x a x i gael 17x.
-\left(1-16x+64x^{2}\right)-1+x
Defnyddio'r theorem binomaidd \left(a+b\right)^{2}=a^{2}+2ab+b^{2} i ehangu'r \left(-1+8x\right)^{2}.
-1+16x-64x^{2}-1+x
I ddod o hyd i wrthwyneb 1-16x+64x^{2}, dewch o hyd i wrthwyneb pob term.
-2+16x-64x^{2}+x
Tynnu 1 o -1 i gael -2.
-2+17x-64x^{2}
Cyfuno 16x a x i gael 17x.
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