Answer: i)169y^3z^3
ii) 225a^3b^3
iii) 145x^2y^2
Step-by-step explanation:
Use substitution.
anywhere you see "a" , than you would plug in b + 2 in for it so....
(b - (b + 2)^4
now take the negative sign and distribute it "+"
so b - b is 0, than 0 - (-2) is -2.
so what is (-2)^4 ????? it would become positive 16
Answer:
y=-x+9
Step-by-step explanation:
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