3(- 4x+1)(x-1) = 2(- 6x+4)(x+3) + 59

Question

3(- 4x+1)(x-1) = 2(- 6x+4)(x+3) + 59

Answer 1

3(-4х+1)(х-1)=2(-6х+4)(х+3)+59,
(-12х+3)(х-1)=(-12х+8)(х+3)+59,
-12х²+12х+3х-3=-12х²-36х+8х+24+59,
12х+3х-3=-36х+8х+24+59,
15х-3=-28х+83,
15х+28х=83+3,
43х=86,
х=86:43,
х=2.
Ответ: 2.

Answer 2

(-12х+3)(х-1)=(-12х+8)(х+3)+59
-12х²+12х+3х-3=-12х²-36х+8х+24+59
12х+3х-3=-36х+8х+24+59
15х-3=-28х+83
43х=86
х=2