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:
x=64°
Step-by-step explanation:
x=180-90-26 (angles on a str line)
=64°
Each term has a common divisor of
:

133 = 7*19, so the number in the blanks is
.