Please help me with my maths

Answer:
Step-by-step explanation:
x² + 5x³ +2x + 4 - 3x⁴
1) -3x⁴ + 5x³ + x² + 2x + 4
2) Coefficient of x⁴ term = -3
3) Index (Exponent) of term x = 1
4) Degree of the expression : Highest power/exponent/ index is the degree.
Degree of the expression = 4
5) Constant term : 4
6) There are 5 terms in the expression
7) x = 2
-3(2)⁴ +5(2)³ + 2² + 2*2 + 4 = -3*16 + 5*8 + 4 + 4 + 4
= -48 + 40 +4 + 4 + 4
= 4