Question

Simplify the following expression: (5x2 + 3x + 4) − (2x2 + 5x − 1). If the final answer is written in the form Ax2 + Bx + C, what is the value of A? (2 points)

Answer 1

When you simplify the expression, you will get 3x^2-2x+5. The value of A will be 3.

Answer 2

Simplify the following expression: (5x2 + 3x + 4) − (2x2 + 5x − 1). If the final answer is written in the form Ax2 + Bx + C, what is the value of A? (2 points)



`(5x^2 + 3x + 4) - (2x^2 + 5x- 1)= \\ \\ \\ 5x^2 + 3x + 4 - 2x^2 - 5x+ 1= \\ \\ \\ 5x^2-2x^2+3x-5x+4+1= \boxed{3x^2-2x+5} \\ \\ A= 3`


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