3x" + 5x2 + 2x Simplify completely х (2 points) 3x3 + 5x + 2 х O 3x3 + 5x + 2 3x2 + 5x2 + 2x 3x5 + 5x3 + 2x2

EXPLANATION
Given the expression:
3x^2 + 5x^2 + 2x
Apply the exponent rule: a^(b+c) = a^b*a^c
x^4=xx^3 x^2=xx
=3xx^3 + 5xx + 2x
Factor out common term:
=x(3x^3+5x+2)
Cancel the common factor: x
=3x^3 + 5x + 2
So, the answer is the second option.