(x - 2)(2x + 3) = (2x + 3)(x - 6)
(x - 2)(2x + 3) - (2x + 3)(x - 6) = 0
(2x + 3)*(x - 2 - x + 6) = 0
(2x + 3)*4 = 0
2x + 3 = 0
2x = -3
x = -3/2 = -1.5
1+2=3
1^2+2^2=1+4=5
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2. 1). 275000=2,75*10^5; 2). 0,0028=2,8*10^-3. 4. 0,4a^14b^-9*1,6a^-8b^17=0,64a^6b^8.
А) 4х+12=5х+10
9х=-2
х=-2/9
б) -2х+10+3х-12=4х+1
-3х=-1
х=1/3
в) 3х-3=2х+4
5х=7
х=1 2/5
г) 3х-15-2х-8=-5х+1
6х=24
х=24:6
х=4