Question

If x - 2 is a factor of the polynomial 2x + kx – 15, then the value of k is​

Answer 1

$\huge\bold\green{\star{\underline{\underline{Answer}}}}$

$\bold{Given:}$

It is a factor of the given equation,

$x-2=0$

$x=2$

$\rule{300}{5}$

Since it is a factor of the given equation it will satisfy the given equation and will leave remainder as 0

$\large\pink{Substituting\: the\: value}$

$2(2)+k(2)-15=0$

$2k -11 =0$

$k = \Large\frac{11}{2}$

Hope it helps úh

Answer 2

$\huge{\mathcal{\purple{A}\green{N}\pink{S}\blue{W}\purple{E}\green{R}\pink{!}}}$

x-2 =0

x=2

2x+kx-15=0

=>2×2+k×2-15=0

=>4+2k-15 =0

=> -11+2k=0

=> 2k= 11

=>k= 11

- --------

2

=> k= 5.5