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Earn +20 ptsQ: X 2-7x plus 12 0
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Vertex of 9x2-27x plus 20?
x=13.5
How do you solve 20x2 plus 27x plus 9 equals 0?
20x^2 + 27x + 9 = 0 20x^2 + 15x +12x + 9 = 0 5x(4x + 3) + 3(4x + 3) = 0 (5x + 3)(4x + 3) = 0 So either (5x + 3) = 0 which yields x = -3/5 or (4x + 3) = 0 which yields x = -3/4
2275.91 equals x plus 27x?
2275.91 = 28xx = 81.2825
What does x equal in 14(3x plus 4) plus x-5(14x-8)?
Impossible to say, because you have not equated the mathematical expression with any number. Assuming it is zero(0) Then 14(3x + 4) + x - 5(14x - 8) = 0 Multiply out the brackets 42x + 56 + x - 70x + 40 = 0 27x + 90 = 0 27x = -90 x = -90/27 x = -30 / 9 x = - 10 / 3 = -3 1/3 = -3.333.....
How do you factor 9x squared plus 27x minus 36?
9x2 + 27x - 36 = 9(x2 + 3x - 4) = 9(x + 4)(x - 1)
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