Question

Simplify the expression: (5x2 + 3x + 4) − (2x2 − 6x + 3). If the final answer is written in the form Ax2 + Bx + C, what is the value of B?

Answer 1

B = 9.
subtract the corresponding powers in both polynomials...

Answer 2

distribute the minus:
\[5x^2 + 3x + 4 - 2x^2 -(-6x) - 3\]

\[5x^2 + 3x _ 4 - 2x^2 + 6x + 3\]

Answer 3

that's supposed to be minus 3

Answer 4

ugh \(5x^2+ 3x + 4 - 2x^2 + 6x -3\) is the last line

Answer 5

so its 9?

Answer 6

i would say yes

Answer 7

@jazy i think you forgot to distribute the minus sign

Answer 8

thank you guys