## anonymous 5 years ago Determine whether the square the expression is a trinomial square. s^2-10s+25

1. anonymous

how u do that

2. anonymous

What is it about these questions that really get you confused? It could be heldful to know.

3. immanuelv

its binomial..... (s-5)^2

4. anonymous

you can tell because 25 is the square of 5 and -10 is -2*5

5. anonymous

for example $x^2+12x+36$ is a perfect square because $36=6^2$ and $12=2\times 6$ therefore $x^2+12+36=(x+6)^2$