С=N1*N2*N3*N4*...*Nn(K1*K2*K3*...*Kn(N1*N2*N3*N4*...*Nn-k1*k2*k3*k4)).
Кажется так)
(4x+1)^2=(4x-2)^2
16x^2+8x+1=16x^2-16x+4
8x+1=-16x+4
8x+16x=4-1
24x=3
x=3/24
x=1/8=0.125
<em>(х-4)(2-х)=6х-8-х²;</em>
<em>-(х-4)(2-х)=-(6х-х²-8)=-6х+х²+8;</em>
<em>(4-х)(х-2)=6х-8-х²;</em>
<em>-(4-х)(2-х)=-(8-6х+х²)=6х-8-х².</em>
<u><em>(х-4)(2-х)=(4-х)(х-2)=-(4-х)(2-х)</em></u>