Are (3x + 1)(x + 2) and 3x2 + 7x + 2 equivalent?

If f(x)=2x+2and g(x)=x^3, what is (g•f)(2)

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x

Answer asap. you begin with 1/2 scoop of ice cream. since you're hungry, you ask the vendor for 2/7 more scoops of ice cream. then, you eat 5/8 scoops. how many scoops of ice cream are left on your cone? i will mark brainliest for first correct answer.