Question

considere( a)=2x+3x+4x+1,B(X)=2x+5x-x-3e c(x)=2x-7x+x-10 calcular

Answer 1

a)2x+3x+4x+1=0
9x+1=0
9x=-1
x=-1/9

b) 2x+5x-x-3=0
6x-3=0
6x=3
x=3/6
x=1/2

c)2x-7x+x-10=0
-4x-10=0
-4x=10
x=-10/4
x=-5/2