Whoever solves will mark brainliest

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

State one method by which you can recognize a perfect square trinomial.