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ГДЗ Математика 7 клас Істер (2024)
Тема 5. МНОГОЧЛЕН
Розкладіть многочлен на множники:
1) ax + ay + 6x + 6y = a(x + y) + 6(x + y) = (x + y)(a + 6);
2) 5m – 5n + pm – pn = 5(m – n) + p(m – n) = (m – n)(5 + p);
3) 9p + mn + 9n + mp = (9p + 9n) + (mn + mp) = 9(p + n) + m(n + p) = (p + n)( 9 + m);
4) ab + ас – b – c = a(b + c) – (b + c) = (b + c)(a – 1);
5) 1 – by – y + b = (1 + b) – (by + y) = (1 + b) – y(b + 1) = (1 + b)(1 – y);
6) mа + 2a – 2m – 4 = a(m + 2) – 2(m + 2) = (m + 2 )(a – 2).
1) ax + ay + 6x + 6y = a(x + y) + 6(x + y) = (x + y)(a + 6);
2) 5m – 5n + pm – pn = 5(m – n) + p(m – n) = (m – n)(5 + p);
3) 9p + mn + 9n + mp = (9p + 9n) + (mn + mp) = 9(p + n) + m(n + p) = (p + n)( 9 + m);
4) ab + ас – b – c = a(b + c) – (b + c) = (b + c)(a – 1);
5) 1 – by – y + b = (1 + b) – (by + y) = (1 + b) – y(b + 1) = (1 + b)(1 – y);
6) mа + 2a – 2m – 4 = a(m + 2) – 2(m + 2) = (m + 2 )(a – 2).