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Whakaroha
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

5\left(2x+1\right)-3\left(2x+1\right)^{2}
Whakareatia te 2x+1 ki te 2x+1, ka \left(2x+1\right)^{2}.
10x+5-3\left(2x+1\right)^{2}
Whakamahia te āhuatanga tohatoha hei whakarea te 5 ki te 2x+1.
10x+5-3\left(4x^{2}+4x+1\right)
Whakamahia te ture huarua \left(a+b\right)^{2}=a^{2}+2ab+b^{2} hei whakaroha \left(2x+1\right)^{2}.
10x+5-12x^{2}-12x-3
Whakamahia te āhuatanga tohatoha hei whakarea te -3 ki te 4x^{2}+4x+1.
-2x+5-12x^{2}-3
Pahekotia te 10x me -12x, ka -2x.
-2x+2-12x^{2}
Tangohia te 3 i te 5, ka 2.
5\left(2x+1\right)-3\left(2x+1\right)^{2}
Whakareatia te 2x+1 ki te 2x+1, ka \left(2x+1\right)^{2}.
10x+5-3\left(2x+1\right)^{2}
Whakamahia te āhuatanga tohatoha hei whakarea te 5 ki te 2x+1.
10x+5-3\left(4x^{2}+4x+1\right)
Whakamahia te ture huarua \left(a+b\right)^{2}=a^{2}+2ab+b^{2} hei whakaroha \left(2x+1\right)^{2}.
10x+5-12x^{2}-12x-3
Whakamahia te āhuatanga tohatoha hei whakarea te -3 ki te 4x^{2}+4x+1.
-2x+5-12x^{2}-3
Pahekotia te 10x me -12x, ka -2x.
-2x+2-12x^{2}
Tangohia te 3 i te 5, ka 2.