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Earn +20 ptsQ: X2 minus 16x plus 55
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X2 plus 16x plus 55 equals?
Assuming you wish to make this equation equal zero, for x2 + 16x + 55 = 0, x = -5.
How do you factor x3 plus 5x2 minus 16x minus 80?
To factorise x3 + 5x2 - 16x - 80 I note that -80 = 5 x -16 and 5 & -16 are the coefficients of x2 and x. Thus I have: x3 + 5x2 - 16x - 80 = (x + 5)(x2 - 16) and the second term is a difference of 2 squares, meaning I have: x3 + 5x2 - 16x - 80 = (x + 5)(x + 4)(x - 4)
How do you factor x squared plus 16x minus 348?
x2 + 16x - 348 cannot be factored. Solving for x with the quadratic formula results in x = -8 - 2√103 and x = -8 + 2√103
How do you factor x2-16x plus 63?
(x - 7)(x - 9)
X2 - 16x plus 28 binomials trinomial?
That factors to (x - 14)(x - 2)
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