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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)+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+2
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te x^{2}-2x+1.
2x^{2}-4x+4
Tāpirihia te 2 ki te 2, ka 4.
2\left(x^{2}-2x+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+2
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te x^{2}-2x+1.
2x^{2}-4x+4
Tāpirihia te 2 ki te 2, ka 4.