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OpenStudy (anonymous):
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?
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Directrix (directrix):
3
Directrix (directrix):
5x^2 - 2 x^2 = 3 x^2 and A = 3. The other terms don't matter in this particular question.
sam (.sam.):
(5x^(2)+3x+4)-(2x^(2)+5x-1) 5x^(2)+3x+4-2x^(2)-5x+1 3x^(2)-2x+5
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