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ГДЗ Алгебра 7 клас Істер (2024)
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Подайте у вигляді многочлена:
1) (a5 – m2)(a10 + a5m2 + m4) = ((a5)3 – (m2)3 = a15 – m6;
2) (25a2 – 5ab+ b2)(5a + b) = (5a)3 + b3 = 125a3 + b3;
3) (2х – 7y2)(4x2 – 14xy2 + 49y4) = 8x3 – 28x2y2 + 98хy4 – 28х2y2 + 98xy4 – 343y6 = 8x3 – 56x2y2 + 196ху4 – 343y6;
4) (3р2 + 4с3)(9p – 12р2с3 + 16с6) = ((3p2)3 + (4с3)3 = 27р6 + 64с9.
1) (a5 – m2)(a10 + a5m2 + m4) = ((a5)3 – (m2)3 = a15 – m6;
2) (25a2 – 5ab+ b2)(5a + b) = (5a)3 + b3 = 125a3 + b3;
3) (2х – 7y2)(4x2 – 14xy2 + 49y4) = 8x3 – 28x2y2 + 98хy4 – 28х2y2 + 98xy4 – 343y6 = 8x3 – 56x2y2 + 196ху4 – 343y6;
4) (3р2 + 4с3)(9p – 12р2с3 + 16с6) = ((3p2)3 + (4с3)3 = 27р6 + 64с9.