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Problemau tebyg o chwiliad gwe

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16a^{2}-40ab+25b^{2}+\left(4a+5b\right)^{2}
Defnyddio'r theorem binomaidd \left(p-q\right)^{2}=p^{2}-2pq+q^{2} i ehangu'r \left(4a-5b\right)^{2}.
16a^{2}-40ab+25b^{2}+16a^{2}+40ab+25b^{2}
Defnyddio'r theorem binomaidd \left(p+q\right)^{2}=p^{2}+2pq+q^{2} i ehangu'r \left(4a+5b\right)^{2}.
32a^{2}-40ab+25b^{2}+40ab+25b^{2}
Cyfuno 16a^{2} a 16a^{2} i gael 32a^{2}.
32a^{2}+25b^{2}+25b^{2}
Cyfuno -40ab a 40ab i gael 0.
32a^{2}+50b^{2}
Cyfuno 25b^{2} a 25b^{2} i gael 50b^{2}.
16a^{2}-40ab+25b^{2}+\left(4a+5b\right)^{2}
Defnyddio'r theorem binomaidd \left(p-q\right)^{2}=p^{2}-2pq+q^{2} i ehangu'r \left(4a-5b\right)^{2}.
16a^{2}-40ab+25b^{2}+16a^{2}+40ab+25b^{2}
Defnyddio'r theorem binomaidd \left(p+q\right)^{2}=p^{2}+2pq+q^{2} i ehangu'r \left(4a+5b\right)^{2}.
32a^{2}-40ab+25b^{2}+40ab+25b^{2}
Cyfuno 16a^{2} a 16a^{2} i gael 32a^{2}.
32a^{2}+25b^{2}+25b^{2}
Cyfuno -40ab a 40ab i gael 0.
32a^{2}+50b^{2}
Cyfuno 25b^{2} a 25b^{2} i gael 50b^{2}.