Question

help!
solve inequality:
(2x-1)(x+4) <0?

Answer 1

You need to FOIL out the left side.

Answer 2

FOIL?

Answer 3

what?

Answer 4

Multiply the first terms, the outer terms, the inner terms,and the last terms.

F (2x)(x) O (2x)4 I -1(4) L (-1)4

Answer 5

\[2x ^{2}+8x-x-4\] the i above should say x(-1)

Answer 6

yesss and then what do u do?

Answer 7

Simplify...combine like terms

Answer 8

2x^2 +7x -4...then?

Answer 9

yes...then factor that

Answer 10

no don't factor...we're going in circles
2x^2 +7x -4<0 solve for x

Answer 11

2x^2 +7x<4
x(2x+7)<4

so you have x<4 and (2x+7)<4
2x<-3
x<-3/2

Answer 12

I hope this is what is intended.

Answer 13

(2x-1)(x+4) <0 if you used the original equation, you'd have
x<1/2 and x<-4 I think this is the right way.

Answer 14

so which is the right answer?

Answer 15

I think my last answer is right

Answer 16

how would u write the answer?
x<1/2 and x<-4?