Which expressions are equivalent? a. 1/5k-2/3j and -2/3j+1/5k

b. 1/5k-2/3j and -1/5+2/3j

c. 1/5k-2/3j and 1/5k-2/3j

d. 1/5k-2/3j and 2/3j-1/5k

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

Item 1 solve for s. s+24=90 −114 −66 66 114

Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?