А) при а=2 (2х-1 не может быть равно 2х)
б) при а=0 (0х-1=2х, отсюда 2х=-1, х=-1/2)
<span>(4/9)^х(27/8)^х-1=2/3</span>⇒(2/3)^2x*(2/3)^(-3x+3)=2/3⇒(2/3)^(2x-3x+3)=2/3⇒
(2/3)^(-x+3)=(2/3)^1⇒-x+3=1⇒x=2
1. ( x - 2 ) ^ 2(x-3)+(x-2)(x-3)^2
=<span>(x-2)(x-3)(x-2+x-3)=</span><span>(x-2)(x-3)(2x-5)
2. 3m (m+2n)-2n(m+2n)^2=</span><span>(m+2n)(3m-2n(m+2n))=(m+2n)(3m-2mn-4n^2)
3. (p+3q)^2(p-q)-(p+3q)(p-q)^2</span>=<span>(p+3q)(p-q)(p+3q-(p-q))=</span><span>4q*(p+3q)(p-q)</span>