Whakaoti mō y
y=-\left(2x+1\right)^{2}+7
Whakaoti mō x (complex solution)
x=\frac{-\sqrt{7-y}-1}{2}
x=\frac{\sqrt{7-y}-1}{2}
Whakaoti mō x
x=\frac{-\sqrt{7-y}-1}{2}
x=\frac{\sqrt{7-y}-1}{2}\text{, }y\leq 7
Graph
Tohaina
Kua tāruatia ki te papatopenga
y=-\left(4x^{2}+4x+1\right)+7
Whakamahia te ture huarua \left(a+b\right)^{2}=a^{2}+2ab+b^{2} hei whakaroha \left(2x+1\right)^{2}.
y=-4x^{2}-4x-1+7
Hei kimi i te tauaro o 4x^{2}+4x+1, kimihia te tauaro o ia taurangi.
y=-4x^{2}-4x+6
Tāpirihia te -1 ki te 7, ka 6.
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