Which of the following expressions are polynomials and which are not?
`5x^(2)y^(1/2)-3xy^(3)+19x^(2)y^(3)`

Which of the following expressions are polynomials and which are not? 3x^(2)y^(2)-5xy^(3)+12y^(4)

Which of the following expressions are polynomials and which are not? 5sqrt(y^(2))-3y^(3)-17

Which of the following expressions are polynomials and which are not? 3x^(3)-4/3x+5/2

Which of the following expressions are polynomials and which are not? 3x^(2/3)-5x-4x^(3)+5/2

Which of the following expressions are polynomials and which are not? 2x^(4)-3x^(3)+5/x-8

Which of the following expressions are polynomials and which are not? 7x^(3)-3x^(2)+5sqrt(x)-11

Which of the following expressions are not polynomials? x^(2)+2x^(-2) (ii) sqrt(ax)+x^(2)-x^(3)3y^(3)-sqrt(5y)+9( iv) ax^((1)/(2))+ax+9x^(2)+43x^(-2)+2x^(-1)+4x+5

Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer. (i) 4x^2-3x+7 (ii) y^2+sqrt(2) (iii) 3sqrt(t)+tsqrt(2) (iv) y+2/y (v) x^(10)+y^3+t^(50)

Which of the following expressions are polynomials in one variable and which are not ? State reasons for your answer . (i) 4x^(2)-3x+7 (ii) y^(2)+sqrt(2) (iii) 3sqrt(t)+tsqrt(2) (iv) y=(2)/(y) (v) x^(10)+y^(3)+t^(50)

Which of the following expressions are exactly equal in value ? 1. ( 3x - y) ^(2) - ( 5x ^(2) - 2xy) 2. (2x - y ) ^(2) 3. (2x pm y ) ^(2) - 2 xy 4. (2x +3y ) ^(2) - 2 xy