X / 6 - x / 8 = 7 / 36
x / 24 = 7 / 36
36x = 24 × 7
36x = 168
x = 168/36
x =4 целых 24/36
x = 4 целых 2 /3
Ответ:
A= 6x-3 B=2x+4
A*B= (6x-3)(2x+4)=(12x^2)+24x-6x-12= (12x^2)+18x-12
M=2x N=5x
M*N=2x*5x=10x^2
x=2
(A*B)-(M*N)= ((12x^2)+18x-12)-(10x^2))=((12*2^2)+18*2-12)-(10*2^2))=48+36-12-40=72-40=32
=(3-3+2)/(√5-√3-√5-√3)=2/(-2√3)=-1/√3=-√3/3