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Earn +20 ptsQ: What is 3x-2 if x equals 4?
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What does 3x equals x plus 4 equal?
3x = x + 4 x = 2 3x2=6 2+4=6
3x2 plus 11x - 20 equals 0?
(3x-4)(x+5)
Three x squared minus eleven x minus four equals zero?
3x2 - 11x - 4 = 0(3x + 1)(x - 4)x = -1/3 and 4
Solve 3x to the 2nd power equals 21 what are the solutions x equals and what is the x intercept?
3x2 = 21 describes two single values, and does not have an x intercept. 3x2 = 21 ∴ x2 = 7 ∴ x = ±√7
How do you solve 3x squared plus 10x- 8 equals 0?
3x2 + 10x - 8 = 0 3x2 + 12x - 2x - 8 = 0 3x(x + 4) - 2(x + 4) = 0 (3x - 2)(x + 4) = 0 So 3x - 2 = 0 or x + 4 = 0 so x = 2/3 or x = -4
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