Question

Разложите на множители:
1)10ad-2а+5b^2-b
2)2x^3-3x^2y-4x+6y
3)x^2y-x+xy^2-y​

Answer 1

Ответ:

$10ab- 2a + {5b}^{2} - b = 2a(5b -1 ) + b(5b - 1) = (2a + b)(5b - 1)$

$2 {x}^{3} - 3 {x}^{2}y - 4x + 6y = 2x( {x}^{2} - 2) - 3y( {x}^{2} + 2)$

${x}^{2} y - x + x {y}^{2} - y = x(xy - 1) + y(xy - 1) = (x + y)(xy - 1)$