Please help does anyone know the answer?

What signals you that factoring by grouping is the best method to use when factoring a problem?

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.

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?