Use perfect square factoring patterns y^2 + 16y + 64 = 0

Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x