Answer:
Step-by-step explanation:
yz+4z=z-y²
yz+4z-z=-y²
yz+3z=-y²
z(y+3)=-y²

Answer:
128
Step-by-step explanation:
just multiply 64 by 2..
Answer:
113,046
Step-by-step explanation:
Add inside of parentheses first to get
(498)x(227)
Multiply to get
113,046
I think it is your second option 5
9x^4 -225y^8
= 9(x^4 - 25y^8)
= 9(x^2 + 5y^4)(x^2 - 5y^4)