Ehangu
-x^{2}+8x-13
Enrhifo
-\left(x-4\right)^{2}+3
Graff
Rhannu
Copïo i clipfwrdd
-\left(x^{2}-8x+16\right)+3
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(x-4\right)^{2}.
-x^{2}+8x-16+3
I ddod o hyd i wrthwyneb x^{2}-8x+16, dewch o hyd i wrthwyneb pob term.
-x^{2}+8x-13
Adio -16 a 3 i gael -13.
-\left(x^{2}-8x+16\right)+3
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(x-4\right)^{2}.
-x^{2}+8x-16+3
I ddod o hyd i wrthwyneb x^{2}-8x+16, dewch o hyd i wrthwyneb pob term.
-x^{2}+8x-13
Adio -16 a 3 i gael -13.
Enghreifftiau
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