Question

k = -5 and R = 5
KR -K2 (R-5)​

Answer 1

$\huge\underline\mathfrak\blue{Answer-}$

The required answer is 0.

$\huge\underline\mathfrak\blue{Explanation-}$

$\bold\pink{Given}$ : K = -5 and R = 5

$\bold\pink{To\:find}$ : KR - K2( R - 5 )

$\bold\pink{Solution}$ :

Put K = -5 and R = 5 in KR - K2 ( R - 5 )

$\implies$ [(-5)(5) - (-5)(2) { (5) - (5) }]

$\implies$ (-25 + 10)(0)

$\implies$ -15 × 0

$\implies$ 0

* $\bold{Note-}$ As we know, anything multiplies with zero gives the answer zero.

$\bold{So,\:the\:required\:answer\:is\:zero.}$

Answer 2

$\large{\underline{\bold{\red{\rm{Given-}}}}}$

K = -5 & R = 5

$\large{\underline{\bold{\red{\rm{Solution-}}}}}$

=> KR - K2 (R - 5)

Putting the given values :

=> (-5)(5) - (-5)(2) { (5 - 5) }

=> (-25 + 10) (0)

=> -15 (0)

=> 0