Whakaoti mō V
V=4x\left(10-x\right)^{2}
Graph
Tohaina
Kua tāruatia ki te papatopenga
V=x\left(400-80x+4x^{2}\right)
Whakamahia te ture huarua \left(a-b\right)^{2}=a^{2}-2ab+b^{2} hei whakaroha \left(20-2x\right)^{2}.
V=400x-80x^{2}+4x^{3}
Whakamahia te āhuatanga tohatoha hei whakarea te x ki te 400-80x+4x^{2}.
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