Answer:
4x^2+3x+4
Explanation:
Let's simplify step-by-step.
3x2+5x+1x2−2x+4
=3x2+5x+x2+−2x+4
Combine Like Terms:
=(3x2+x2)+(5x+−2x)+(4)
=4x2+3x+4
3x^4+3x+5
3x^2 + 5x +1 * x^2 - 2x + 4
3x^2 * x^2 = 3x^4
5x - 2x = 3x
1+4= 5
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