Solve the system by substitution. check your solution. a- 1.2b = -3 0.25 +0.6a = 12 a. (15, 15) b. (10, 12) c. (13, 12) d. (7,9) select the best answer from the choices provided oa ob
Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.