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Whakaroha
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

2\left(x^{2}-2x+1\right)-1\left(x+1\right)^{2}
Whakamahia te ture huarua \left(a-b\right)^{2}=a^{2}-2ab+b^{2} hei whakaroha \left(x-1\right)^{2}.
2x^{2}-4x+2-1\left(x+1\right)^{2}
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te x^{2}-2x+1.
2x^{2}-4x+2-\left(x^{2}+2x+1\right)
Whakamahia te ture huarua \left(a+b\right)^{2}=a^{2}+2ab+b^{2} hei whakaroha \left(x+1\right)^{2}.
2x^{2}-4x+2-x^{2}-2x-1
Hei kimi i te tauaro o x^{2}+2x+1, kimihia te tauaro o ia taurangi.
x^{2}-4x+2-2x-1
Pahekotia te 2x^{2} me -x^{2}, ka x^{2}.
x^{2}-6x+2-1
Pahekotia te -4x me -2x, ka -6x.
x^{2}-6x+1
Tangohia te 1 i te 2, ka 1.
2\left(x^{2}-2x+1\right)-1\left(x+1\right)^{2}
Whakamahia te ture huarua \left(a-b\right)^{2}=a^{2}-2ab+b^{2} hei whakaroha \left(x-1\right)^{2}.
2x^{2}-4x+2-1\left(x+1\right)^{2}
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te x^{2}-2x+1.
2x^{2}-4x+2-\left(x^{2}+2x+1\right)
Whakamahia te ture huarua \left(a+b\right)^{2}=a^{2}+2ab+b^{2} hei whakaroha \left(x+1\right)^{2}.
2x^{2}-4x+2-x^{2}-2x-1
Hei kimi i te tauaro o x^{2}+2x+1, kimihia te tauaro o ia taurangi.
x^{2}-4x+2-2x-1
Pahekotia te 2x^{2} me -x^{2}, ka x^{2}.
x^{2}-6x+2-1
Pahekotia te -4x me -2x, ka -6x.
x^{2}-6x+1
Tangohia te 1 i te 2, ka 1.