Question

Нужна помощь в решении примеров ​

Answer 1

$ax - 2a - 3x + 6 = \\ = a(x - 2) - 3(x - 2) = \\ = (x - 2)(a - 3) \\ a = 1.5 \\ x = 3.5 \\ (3.5 - 2)(1.5 - 3) = 1.5 \times ( - 1.5) = - 2.25$

$2a + b + 2a { }^{2} + ab = \\ = 2a (a + 1) + b(a + 1) = \\ = (a + 1)(2a + b) \\ a = - 1 \\ b = 998 \\ (- 1 + 1)(998 - 2) = 0$

Answer 2

а)=а(х-2)-3(х-2)=1,5(3,5-2)-3(3,5-2)=1,5*1,5-3*1,5=2,25-4,5=-2,25

б)=2а(1+а)+b(1+a)=2*(-1)(1-1)+998(1-1)=0