What is the difference of the polynomials?
(X^4+x^3+x^2+x) - (x^4-x^3+x^2-x) 2x^2 2x^3+2x X^6+x^2 2x^6+2x^2

An assembly consists of two mechanical components. suppose that the probabilities that the first and second components meet specifications are 0.87 and 0.84. assume that the components are independent. determine the probability mass function of the number of components in the assembly that meet specifications. x

Can someone pls ! pls answer all. no explanation needed..

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup