form 4 function問題~~

Cassano

f(x) = 2x^2 + x + k

a.) find the value of k if f(x) can be expressed as the product of two binomials with integral coefficient and constant term.

b.)using value of k, find possible value of x, if f(x) can be expressed as the product of prime number

唔明條問題講乜@@"

Sol_Campbell

a)我諗係問如果f(x)= 2x^2 + x + k=(ax+b)(cx+d) a,b,c,d都係integer ,k=??

b)如果2x^2 + x + k係質數既倍數,x=??