Whakaoti mō C
C=-3\left(3x-5\right)\left(x+3\right)
Whakaoti mō x (complex solution)
x=\frac{-\sqrt{49-C}-2}{3}
x=\frac{\sqrt{49-C}-2}{3}
Whakaoti mō x
x=\frac{-\sqrt{49-C}-2}{3}
x=\frac{\sqrt{49-C}-2}{3}\text{, }C\leq 49
Graph
Tohaina
Kua tāruatia ki te papatopenga
C=49-\left(4+12x+9x^{2}\right)
Whakamahia te ture huarua \left(a+b\right)^{2}=a^{2}+2ab+b^{2} hei whakaroha \left(2+3x\right)^{2}.
C=49-4-12x-9x^{2}
Hei kimi i te tauaro o 4+12x+9x^{2}, kimihia te tauaro o ia taurangi.
C=45-12x-9x^{2}
Tangohia te 4 i te 49, ka 45.
Ngā Tauira
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