Given f(x) = 3x^2 and g(x)=x^4-2x^3+4x^2-x+5, what is f(x)-g(x)

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons