If f(x) = 2x+4, then what is the value
of f(4) + f(6)?

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

Ten times the square of a non-zero number is eqaul to ninety times the number

In the diagram, gef and hef are congruent. what is the value of x