How do you simplify 2x + 3x - 5x ( 2+ x ) + 4- x ( 3+ 4)?

2 Answers
Mar 12, 2018

-5x^2 - 12x + 4

Explanation:

2x + 3x - 5x (2 + x) + 4 - x(3 + 4)

Removing all the brackets by multiplying it with the integer outside the bracket;

2x + 3x - 10x - 5x^2 + 4 - 3x - 4x

Simiplifying the equation;

2x + 3x - 10x - 3x - 4x - 5x^2 + 4

-12x - 5x^2 + 4

-5x^2 - 12x + 4 ->"simplified"

Mar 12, 2018

-5x^2 - 12x + 4

Explanation:

I'm going to do an entire dang proof for this lol

2x + 3x -5x ( 2 + x ) + 4 -x ( 3 + 4 )=
1. Original Problem

2x + 3x -5x ( 2 + x ) + 4 -x ( 7 )=
2. Solve within the parenthesis (following PEMDAS)

2x + 3x - 10x - 5x^2 + 4 -7x =
3. Distribute

-5x^2 - 12x + 4
4. Simplify

And that's it