a) 3x-12=3³.2² b) 435-(x-5)=1448:14 c)5x³+17=57
3x-12=27.4 435 - (x-5) = 362: 3,5 5x³ =57-17
3x-12=108 435 - (x - 5) = 362 : 3,5 5x³=40
3x=108+12 435 - ( x - 5 ) = 103.4285714285714 40:5=8 x=-441428571428102
a) 3x=120 c) 2³=8
x=120:3 x³ =2³
x=40 x = 2