Solve this quadratic equation. show all work. 4x^2-2x-5=0

You have 6 dollars +12 pennies +to quarters + 4 dimes=2 nickels how much do you have

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

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)