Is the polynomial `2 x ^(2) + 3 xy + 5y ^(2)` in one variable ?

Express the polynomial x^(2) + 8x + 15 in view of variable 'y'.

The degree of the polynomial (x^2 + 2x^3) (x^2 -5x^2y^2 + y^4) is

If the slope of one of the lines 2x^(2) + 3xy + lambda y^(2) = 0 is 2 then the angle between the lines is

The degree of the polynomial 3x^2y^3 + 4xy +7 is

The degree of the polynomial 7-2x^3+7x^2y+xy^3 is

Which of the following expressions are polynomials in one variable and which are not ? Give reasons for your answer. 3x^(2)-2x+5

The arrangement of the following in ascending order of angle to eliminate xy term in the following equations (A) 2x^(2) + 5xy + 2y^(2) + 5x + 7y + 1= 0 (B) 2x^(2) - sqrt(3) xy + 3y^(2) = 9 (C) 9x^(2) + 2 sqrt(3) xy + 5y^(2) = 10

Which of the following expressions are polynomials in one variable and which are not ? Give reasons for your answer. y+(2)/(y)

Which of the following expressions are polynomials in one variable and which are not ? Give reasons for your answer. x^(2)+sqrt(2)