-3
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2(x^2 + 2)(x + 3)
multiply the base number and add the two exponets together
x3 - 4x = x(x2 - 4) = x(x + 2)(x - 2)
It equals 53X- a number is squared when it is multiplied by itself, so 7X by 7X = 49X. 2X by 2X =4X, so 49X + 4X is 53X.
Y = x squared -4x plus 3 is an equation of a function. It is neither called a domain nor a range.