What number must you add to the polynomial below to complete the square? x^2-21x

The number added to the polynomial is

Explanation:

The given polynomial is

We need to determine the number that is added to the polynomial to complete the square.

The last term of the polynomial can be determined by dividing the term 21 by 2 and then squaring the term.

Thus, we have,

Last term =

Now, squaring the term, we have,

Last term =

Thus, the number added to the polynomial by completing the square is

pakistan's principal natural resources are arable land and water. about 25% of pakistan's agriculture accounts for about 21% [1] of gdp and employs about 43% of the labour force. in pakistan, the most agricultural province is punjab where wheat and cotton are the most grown.

jml angle lkj & angle mj = lm