Enrhifo
-\left(x+1\right)\left(x+15\right)
Ehangu
-x^{2}-16x-15
Graff
Rhannu
Copïo i clipfwrdd
49-\left(x^{2}+16x+64\right)
Defnyddio'r theorem binomaidd \left(a+b\right)^{2}=a^{2}+2ab+b^{2} i ehangu'r \left(x+8\right)^{2}.
49-x^{2}-16x-64
I ddod o hyd i wrthwyneb x^{2}+16x+64, dewch o hyd i wrthwyneb pob term.
-15-x^{2}-16x
Tynnu 64 o 49 i gael -15.
49-\left(x^{2}+16x+64\right)
Defnyddio'r theorem binomaidd \left(a+b\right)^{2}=a^{2}+2ab+b^{2} i ehangu'r \left(x+8\right)^{2}.
49-x^{2}-16x-64
I ddod o hyd i wrthwyneb x^{2}+16x+64, dewch o hyd i wrthwyneb pob term.
-15-x^{2}-16x
Tynnu 64 o 49 i gael -15.
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