Enrhifo
-\left(2x-3\right)^{2}+8
Ehangu
-4x^{2}+12x-1
Graff
Rhannu
Copïo i clipfwrdd
8-\left(4x^{2}-12x+9\right)
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(2x-3\right)^{2}.
8-4x^{2}+12x-9
I ddod o hyd i wrthwyneb 4x^{2}-12x+9, dewch o hyd i wrthwyneb pob term.
-1-4x^{2}+12x
Tynnu 9 o 8 i gael -1.
8-\left(4x^{2}-12x+9\right)
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(2x-3\right)^{2}.
8-4x^{2}+12x-9
I ddod o hyd i wrthwyneb 4x^{2}-12x+9, dewch o hyd i wrthwyneb pob term.
-1-4x^{2}+12x
Tynnu 9 o 8 i gael -1.
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