Which of the following expressions are polynomials? Justify your answer. 1) x4-4x+72) x2+root2x- root 53) -34) 3 rootx +55) root3/x2 +116)root 3x2 -2x7) 1/3x to the power-2 +2x +38) cube root of x + 9please answer fast its urgent, no fiddling please

Which of the following expressions are polynomials? Justify your answe

1.	Which of the following expressions are polynomials? Justify your answer. 1) x4-4x+72) x2+root2x- root 53) -34) 3 rootx +55) root3/x2 +116)root 3x2 -2x7) 1/3x to the power-2 +2x +38) cube root of x + 9please answer fast its urgent, no fiddling please
Answer» Step-by-step EXPLANATION:Look dearI can just help u with the theory partAny EXPRESSION becomes polynomial only if it contains X TERMS in it and not containing fraction part and power is positive ..