Q: What is x in -3x 18?

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3x=18 x=18/3 x=6

If x-3x=18 then x equals -9

x2 + 3x - 18 = x2 + 6x - 3x - 18 = x(x + 6) - 3(x + 6) = (x + 6)(x - 3)

you mean: x+3x+3=x+18 so x=5

X2 + 3X - 18 = 0What two factors of - 18 add up to 3 ??(X - 3)(X + 6)============so, by the zero sum rule,X = 3X = - 6

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3x=18 x=18/3 x=6

3x+12 = 18 3x = 18-12 3x = 6 x = 2

If x-3x=18 then x equals -9

We have, f(x) = x2-3x-18 f(x) = x2-3x-18 = x2-6x+3x-18 = x(x-6)+3(x-6) = (x+3)(x-6) Factors are (x-6) and (x+3).

x2 + 3x - 18 = x2 + 6x - 3x - 18 = x(x + 6) - 3(x + 6) = (x + 6)(x - 3)

If: 3x+6 = 18 Then: x = 4

x2 + 3x - 18 = (x + 6)(x - 3)

you mean: x+3x+3=x+18 so x=5

3(x + 2) = x - 18 3x + 6 = x - 18 3x - x = -18 - 6 2x = -24 x = -12

x^2+3x-18=0 (x+6)(x-3)=0

3x+12=x+48: 3x-x=-12+48 2x=36 x=18

y=1/3x x=-18 y=1/3(-18) y=-6