Aromātai
\left(a+b\right)^{2}-4
Whakaroha
a^{2}+2ab+b^{2}-4
Tohaina
Kua tāruatia ki te papatopenga
\left(a+b\right)^{2}-2^{2}
Ka taea te whakareanga te panoni ki te rerekētanga o ngā pūrua mā te ture: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}, ina a=a+b me b=2.
a^{2}+2ab+b^{2}-2^{2}
Whakamahia te ture huarua \left(p+q\right)^{2}=p^{2}+2pq+q^{2} hei whakaroha \left(a+b\right)^{2}.
a^{2}+2ab+b^{2}-4
Tātaihia te 2 mā te pū o 2, kia riro ko 4.
\left(a+b\right)^{2}-2^{2}
Ka taea te whakareanga te panoni ki te rerekētanga o ngā pūrua mā te ture: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}, ina a=a+b me b=2.
a^{2}+2ab+b^{2}-2^{2}
Whakamahia te ture huarua \left(p+q\right)^{2}=p^{2}+2pq+q^{2} hei whakaroha \left(a+b\right)^{2}.
a^{2}+2ab+b^{2}-4
Tātaihia te 2 mā te pū o 2, kia riro ko 4.
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