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Earn +20 ptsQ: Which is a zero of the function fx x2 - 8x 7?
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What is the real solution for the equation x2-8x-4 equals 0?
I'll show work. X2-8x-4=0. X2-8x=4. X-8x=2. -7x=2. X=-(2/7).
Explain how to solve x2 plus 8x -2 equals 0 by completing a square?
x2 + 8x - 2 = 0 => x2 + 8x = 2 => x2 + 8x + 16 = 2 + 16 = 18 => (x + 4)2 = 18 => x + 4 = +or- sqrt(18) = +or- 3*sqrt(2) so x = -4 +or- 3*sqrt(2)
Factor the trinomial x2 plus 8x plus 12?
x2 + 8x + 12 = (x + 6) (x + 2)
What is the Factored form of x squared -8x plus 15?
X2 - 8X + 15 = (X - 3)(X - 5)
X2 plus 8x 12 equals 0 in quadratic formula?
x2+8x+12 = 0 When factorized: (x+6)(x+2) = 0 Therefore: x = -6 or x = -2
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