Simplify the following expression: (5x2 + 3x + 4) − (2x2 − 6x + 3). If the final answer is written in the form Ax2 + Bx + C, wha
t is the value of B?
Numerical Answers Expected!
2 answers:
Combine like terms. remember to keep the signs.
5x² - 2x² = 3x²
3x - (-6x) = 3x + 6x = 9x
4 - (-3) = 7
3x² + 9x + 7 = Ax² + Bx + C
9 = B, because 9 is in the B's place
9 is your answer
hope this helps
=5x2+3x+4-(2x2-6x+3)
=5x2+3x+4-2x2+6x-3
=3x2+9x+1
comparing it with Ax2+Bx+C we get B=9
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