Answer:
sum of the polynomials is 
Step-by-step explanation:
Given polynomial is (7 x^3– 4 x^2) + (2 x^3 +3 x)
adding x^3 terms, now we get


Therefore the sum of given polynomial is

Answer:
67
Step-by-step explanation:
Division:-

The y intercept is the value of y when x=0. Substituting we get
y = 4
Answer: 4
9.88 • 10°
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Ten to the power of zero