[log2(2^(-1/2))]^2=(-1/2)^2=1/4............................
1) 10(n+m)-4(2m+7n)=10n+10m-8-14n=10n-14n+10m-8=10m-4n+8
2)11(5c+d)+3(d+c)=55c+11d+3d+3c=58c+14d
14g(p-3)+p-3=(p-3)(14g+1)
Fffffffffffffffffffffffffffffffffffffffffffff
5х^2 - 11х = y
5x - 11 = y
Решение
5х^2 - 11х = 5х - 11
5х^2 - 16х + 11 = 0
D = 256 - 220 = 36 ; V D = 6
X1 = ( 16 + 6 ) : 10 = 2,2
X2 = ( 16 - 6 ) : 10 = 1
y = 5x - 11
y1 = 11 - 11 = 0
y2 = 5 - 11 = - 6
Ответ ( 2,2 ; 0 ) ; ( 1 ; - 6 )