2(5x−12)^2−10(5x−12)+12=0 помогите пж

Question

2(5x−12)^2−10(5x−12)+12=0 помогите пж

Answer 1

5x-12=t

2t²-10t+12=0
D=100-4*2*12=4
t1=10+2/4=3
t2=10-2/4=8/4=2

5x-12=3
x1=3

5x-12=2
x2=14/5=2,8