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Earn +20 ptsQ: 2x8 - 5x2 plus 3x plus 4?
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What is -5x2-3x plus 4 when x equals -1?
-5*2-3x+4 when x=-1 is -10-3*(-3)+4=-10*9+4=3
Is 4 - 3x plus 5x2 a polynomial?
Yes. If you add, subtract or multiply (but not if you divide) any two polynomials, you will get a polynomial.
What is the factorization of 5x2 plus 9X plus 4?
5x2 + 9x + 4 = (x + 1)(5x + 4).
Evaluate -5x2 - 3x for x equals -2?
for x = -2: x2 = 4, -5x2 = -20; 3x = -6 giving -20 - (-6) = - 20 + 6 = -14.
How do you factor 5x2 plus 20x?
5x2 + 20x = 5x (x + 4)
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