" (1) "4x^(2)-3x+7

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)

What must be subtracted from 2x^(4 ) + 4x^(2) - 3x + 7 to get 3x^(3) - x^(2) + 2x + 1 ?

What must be subtracted from 2x^(4) + 4x^(2) -3x+7 to get 3x^(3) -x^(2)+2x +1?

If P = 3x^(3) -5x + 9, Q = 4x^(3) + 5x^(2) -11 and R = 5x^(3) + 4x^(2) -3x +7 , then P -2 Q + R is

If alpha and beta are zeros of p(x) = 4x^(2) + 3x + 7 , "find" (1)/(alpha) + (1)/(beta) .

If alpha and beta are the roots of 4x^(2) + 3x +7 =0 then the value of 1/alpha + 1/beta is

If alpha and beta are the zeros of the polynomials P(x)=4x^(2)+3x+7 thent 1/(alpha)+1/(beta) is equal to …………..

If alpha,beta are the zeros of the polynomial p(x)=4x^(2)+3x+7, then (1)/(alpha)+(1)/(beta) is equal to ( a )(7)/(3)(b)-(7)/(3)(c)(3)/(7)(d)-(3)/(7)

If f(x)=4x^(2)+3x-7 and alpha is a common root of the equation x^(2)-3x+2=0 and x^(2)+2x-3=0 then the value of f(alpha) is