Simplify the following expression: (5x^2 + 3x + 4) - (2x^2 - 6x + 3). If the final answer is written in the form Ax^2 + Bx + C, what is the value of B?

Numerical Answers Please!

Question

Simplify the following expression: (5x^2 + 3x + 4) - (2x^2 - 6x + 3). If the final answer is written in the form Ax^2 + Bx + C, what is the value of B?

Numerical Answers Please!

anonymous · Answer

3x2 + 9x + 1.

anonymous · Answer

Wait, do you mean 3x^2 for A 9x for B and 1 for C?

mathmale · Answer

I'd suggest that you first combine  (5x^2 + 3x + 4) - (2x^2 - 6x + 3) and worry about coefficients A, B and C later.

 (5x^2 + 3x + 4) - (2x^2 - 6x + 3)
becomes
   5x^2 + 3x + 4 
- (2x^2 - 6x + 3)
----------------

             ?

anonymous · Answer

3x^2, 9x, and 1?

anonymous · Answer

Because you would distribute the negative.