Please solve this , i will mark brainliest

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

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no

Pleas ! its urgent! what is the value of x? enter your answer in the box. mm