Simplify by removing parentheses and then combining like terms. (x+3y)−(x−y)

Which of the following is true for the relation f(x)=2x^2+1

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)

Which statement about the relative areas of δabc and δxyz is true? the area of δabc > the area of δxyz the area of δabc < the area of δxyz the area of δabc = the area of δxyz more information is needed to compare.