2x^(2)-7x-15=

(i) Is x=5 a solution of the equation x^(2)-2x-15=0 ? (ii) Is x=-3 a solution of the equation 2x^(2)-7x+9=0 ?

A function h is defined as follows : for x gt 0, h(x)=x^(7)+2x^(5)-12x^(3)+15x-2 for x le0, h(x)=x^(6)-3x^(4)+2x^(2)-7x-5 What is the value of h(-1) ?

30x^(2)+7x-15

For what values of 'x', the polynomial 2 x^2-7 x-15 is equal to zero? Write the polynomial as the product of two first degree polynomials.

If roots of quadratic equation x^(2)+(a^(2)+7)x-15a=0 lie on either side of 2, then complete set of values of a is

15x^(2)-7x-36=0:

(x^(2)-7x+15)/(x-3) , find remainder