Why are `1/4` and `-1` zeroes of the polynomials `p(x)=4x^(2)+3x-1` ?

Find zero of the polynomial p (x) = 3x +1

Find the zeroes of the given polynomials. p(x)=3x

Find the zeroes of the given polynomials. p(x)=x^(4)-16

Find zero of the polynomial 2x -1.

Find a zero of the of polynomial p(x) = 2x + 1.

Find the zeroes of the given polynomials. p(x)=(x+2)(x+3)

Check whether 3 and -2 are the zeroes of the polynomial p(x) when p(x)=x^(2)-x-6 .

Verify that 3, -1, -(1)/(3) are the zeroes of the cubic polynomial p(x) = 3x^(3)- 5x^(2)-11x-3 , and then verify the relationship between the zeroes and the coefficients.

Verify that 1, 2 and (3)/(2) are the zeroes of the cubic polynomial p(x)= 2x^(3)-9x^(2)+13x-6 . Then, verify the relationship between the zeroes and the coefficient of the polynomial.

Find all the other zeroes of the polynomial p(x)= 2x^(4)-9x^(3)+5x^(2)+3x-1 , if two of its four zeroes are (2+ sqrt(3))" and "(2- sqrt(3)) .