Номер 346
а) 3x(a + b) – 2y(a + b) = (a + b)(3x – 2y);
б) 3(2x + 5) + x(5 + 2x) = (2x + 5)(3 + x);
в) 5x(x –y) + 3(x – y) = (x – y)(5x + 3);
г) 2(m2 – 2) – x(m2 – 2) = (m2 – 2)(2 – x).
а) 3x(a + b) – 2y(a + b) = (a + b)(3x – 2y);
б) 3(2x + 5) + x(5 + 2x) = (2x + 5)(3 + x);
в) 5x(x –y) + 3(x – y) = (x – y)(5x + 3);
г) 2(m2 – 2) – x(m2 – 2) = (m2 – 2)(2 – x).