Question

Which of the solution sets is all real numbers?
lxl<-1
lxl=-1
lxl>-1

Answer 1

@peachpi

Answer 2

can absolute value be negative?

Answer 3

no

Answer 4

so then don't all numbers have an absolute value greater than -1?

Answer 5

yeah

Answer 6

so which one of your answers is that?

Answer 7

lxl>-1

Answer 8

yep

Answer 9

what about this one
Solve 4(x - 3) - 2(x - 1) > 0.

Answer 10

{xlx<-5}
{xlx>-5}
{xlx>5}
{xlx<5}

Answer 11

@peachpi

Answer 12

Start by distributing. Solve it just like an equation

http://www.wolframalpha.com/input/?i=4%28x+-+3%29+-+2%28x+-+1%29+%3E+0