Helppp with 2nd and 4th

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.

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account.write an expression to represent the total amount in his savings account.

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?