Enrhifo
9\left(x-4\right)^{2}+4
Ehangu
9x^{2}-72x+148
Graff
Rhannu
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9x^{2}-72x+144+4
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(3x-12\right)^{2}.
9x^{2}-72x+148
Adio 144 a 4 i gael 148.
9x^{2}-72x+144+4
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(3x-12\right)^{2}.
9x^{2}-72x+148
Adio 144 a 4 i gael 148.
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