y = x^2 + x
z = y^2 + y
substitute y = x^2 + x into z = y^2 + y
z = (x^2 + x)^2 + (x^2 + x)
z = x^4 + 2x^3 + x^2 + x^2 + x
z = x^4 + 2x^3 + 2x^2 + x
Answer is
x^4 + 2x^3 + 2x^2 + x
Answer:
the hunter in the center uses the trial carry.
Sup
Explanation:
h
3
(1/3x-1/6y)×18=4×18 ⇒ 6x-3y=72
6x-ay=8 if a=3 ⇒ 6x-3y=8
72≠8
a=3 ⇒ system has no solution