Help please all questions.

Is the square root of 4 plus the square root of 16 rational?

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.

1. find the area of the unshaded square 2. find the area of the large square 3. what is the area of the frame represented by the shaded region show