Question

What number makes this polynomial a perfect square x^2+15x+k

Answer 1

\[\frac{225}{4}\]

Answer 2

seems random i know, but it goes like this.
half of 15 is
\[\frac{15}{2}\] and
\[(\frac{15}{2})^2=\frac{15^2}{2^2}=\frac{225}{4}\]

Answer 3

- Thats what I thought , im ohkay w/ this stuff , juss not good .

Answer 4

you have to express it in the form of a^2+2ab+b^2

Answer 5

oh ok...satellite73 explained u.. kk