4x - 7y = 2
X = -y - 5
Systems of equations using substitution

Proceed as in example 3 in section 6.1 to rewrite the given expression using a single power series whose general term involves xk. ∞ n(n − 1)cnxn − 2 n = 2 − 4 ∞ ncnxn n = 1 + ∞ cnxn n = 0

Which of the choices shown could be used to prove that aacp=abcp ?

What is the prime factorization of 230