The square of two numbers is 3. Twice the square of the first number increased by the square of second number is 9. What is the answer?

What is the difference between the predicted value and the actual value

Me asap on # : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.

Two trains leave stations 546 miles apart at the same time and travel toward each other. one train travels at 95 miles per hour while the other travels at 115 miles per hour l. how long will it take for the two trains to meet