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Problemi Simili mit-Tiftix tal-Web

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4+12a+9a^{2}-\left(2-3a\right)^{2}
Uża teorema binomjali \left(p+q\right)^{2}=p^{2}+2pq+q^{2} biex tespandi \left(2+3a\right)^{2}.
4+12a+9a^{2}-\left(4-12a+9a^{2}\right)
Uża teorema binomjali \left(p-q\right)^{2}=p^{2}-2pq+q^{2} biex tespandi \left(2-3a\right)^{2}.
4+12a+9a^{2}-4+12a-9a^{2}
Biex issib l-oppost ta' 4-12a+9a^{2}, sib l-oppost ta' kull terminu.
12a+9a^{2}+12a-9a^{2}
Naqqas 4 minn 4 biex tikseb 0.
24a+9a^{2}-9a^{2}
Ikkombina 12a u 12a biex tikseb 24a.
24a
Ikkombina 9a^{2} u -9a^{2} biex tikseb 0.
4+12a+9a^{2}-\left(2-3a\right)^{2}
Uża teorema binomjali \left(p+q\right)^{2}=p^{2}+2pq+q^{2} biex tespandi \left(2+3a\right)^{2}.
4+12a+9a^{2}-\left(4-12a+9a^{2}\right)
Uża teorema binomjali \left(p-q\right)^{2}=p^{2}-2pq+q^{2} biex tespandi \left(2-3a\right)^{2}.
4+12a+9a^{2}-4+12a-9a^{2}
Biex issib l-oppost ta' 4-12a+9a^{2}, sib l-oppost ta' kull terminu.
12a+9a^{2}+12a-9a^{2}
Naqqas 4 minn 4 biex tikseb 0.
24a+9a^{2}-9a^{2}
Ikkombina 12a u 12a biex tikseb 24a.
24a
Ikkombina 9a^{2} u -9a^{2} biex tikseb 0.