Neidio i'r prif gynnwys
Datrys ar gyfer y
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Datrys ar gyfer x (complex solution)
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Datrys ar gyfer x
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Graff

Problemau tebyg o chwiliad gwe

Rhannu

y=\left(1200-240x\right)^{2}+80x^{2}\times 80
Lluosi x a x i gael x^{2}.
y=1440000-576000x+57600x^{2}+80x^{2}\times 80
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(1200-240x\right)^{2}.
y=1440000-576000x+57600x^{2}+6400x^{2}
Lluosi 80 a 80 i gael 6400.
y=1440000-576000x+64000x^{2}
Cyfuno 57600x^{2} a 6400x^{2} i gael 64000x^{2}.