Question

If [x2+k-3]= [x-3] [x+1] then k=?

Answer 1

Hi Friend !!!

Here is ur answer !!!

x²+k-3 = (x-3)(x+1)

x²+k-3 = x²-3x+x-3

k = -2x


Hope it helps u : )

Answer 2

Hey mate !!

Here's the answer !!

Given:

x² + k - 3 = ( x - 3 ) ( x + 1 )

Taking RHS into consideration,

= ( x - 3 ) ( x + 1 )

= x² + x - 3x - 3

= x² -2x - 3

So equating LHS and RHS we get,

x² + k - 3 = x² - 2x - 3

x² and - 3 gets cancelled on both sides. After that we get,

=> k = - 2x

Hope my answer helps !!

Cheers !!