1
y=5x-3
y(-3)*y(2)=(-15-3)*(10-3)=-18*7=-126
y=3x-2+|2x-3|
y(-3)*y(2)=(-9-2+9)*(6-2+1)=-2*5=-10
y=(4x-3)/(3x+2)
y(-3)*y(2)=(-12-3)/(-9+2)*(8-3)/(6+2)=-15/(-7)*5/8=75/56=1 19/56
2
y=3x-8
D(y)∈(-∞;∞)
y=2x²-|3x+4|
D(y)∈(-∞;∞)
y=4*(5x-2|x-3|)/(3x²-3x-1)
3x²-3x-1≠0
D=9+12=21
x1=(3-√21)/6 U x2=(3+√21)/6
D(y)∈(-∞;(3-√21)/6) U ((3-√21)/6;(3+√21)/6) U ((3+√21)/6;∞)