log2(x+3)+log2(x+2) = log2 6
log2(x+3)(x+2) = log2 6
(x+3)(x+2) =6
x^2+2x+6+3x=6
x^2+5x=0
x(x+5)=0
x=0 и x+5=0.x=-5
x=0 x=-5
log4x+log4y=1 y-2x=7
log16xy=1 y=7+2x
log16x(7+2x)=1
log112x+32x^2=1
112x+32x^2=0
8x(14+4x)=0
8x=0 14+4x=0
x=0 x=3.5
y=7 y=14
ответ:(0:7), (3,5:14)
log3 15+log3 18-log3 10
log3 270-log3 10
log3 270/10
log3 27=3
log2(x+3)+log2(x+2) = log2 6
log2(x+3)(x+2) = log2 6
(x+3)(x+2) =6
x^2+2x+6+3x=6
x^2+5x=0
x(x+5)=0
x=0 и x+5=0.x=-5
x=0 x=-5
log4x+log4y=1 y-2x=7
log16xy=1 y=7+2x
log16x(7+2x)=1
log112x+32x^2=1
112x+32x^2=0
8x(14+4x)=0
8x=0 14+4x=0
x=0 x=3.5
y=7 y=14
ответ:(0:7), (3,5:14)
log3 15+log3 18-log3 10
log3 270-log3 10
log3 270/10
log3 27=3