4(5x-4) < 13(x-1)+18 (1) x(x+5)- (x-2) (x+8) <4 (2)

Question

4(5x-4) < 13(x-1)+18 (1)
x(x+5)- (x-2) (x+8) <4 (2)

Answer 1

1)
20x-16<13x-13+18<br>20x-13x<21<br>7x<21<br>x<3<br>x∈(-∞;3)

2)
x²+5x-(x²+8x-2x-16)<4<br>x²+5x-x²-6x+16<4<br>-x<-12<br>x>12
x∈(12;+∞)