# Math Help - simplifying

1. ## simplifying

Hi does anybody know how to simplify this equation (with steps)?

(bc)(ca) + (bc)(ab) + (ca)(ab)

thanks

2. Originally Posted by djmccabie
Hi does anybody know how to simplify this equation (with steps)?

(bc)(ca) + (bc)(ab) + (ca)(ab)

thanks
but this is not an equation ( ? ) simplify ? wouldn't you just get alll the like terms together?

3. i simplyfied this to

c^2ab + b^2ca + a^2bc

as far as i know this is right but i somehow need to rearrange this because i know that

a+b+c = -3/2

ab+ac+bc = -13/2

abc = 7/2

so i need to arrange it so that i can substitute one or more of these values.