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\left(x^{2}-4y^{2}\right)\left(x^{2}+4y^{2}\right)
x^{4}-16y^{4} ni \left(x^{2}\right)^{2}-\left(4y^{2}\right)^{2} sifatida qaytadan yozish. Kvadratlarning farqini ushbu formula bilan hisoblash mumkin: a^{2}-b^{2}=\left(a-b\right)\left(a+b\right).
\left(x-2y\right)\left(x+2y\right)
Hisoblang: x^{2}-4y^{2}. x^{2}-4y^{2} ni x^{2}-\left(2y\right)^{2} sifatida qaytadan yozish. Kvadratlarning farqini ushbu formula bilan hisoblash mumkin: a^{2}-b^{2}=\left(a-b\right)\left(a+b\right).
\left(x-2y\right)\left(x+2y\right)\left(x^{2}+4y^{2}\right)
Toʻliq ajratilgan ifodani qaytadan yozing.