Question

36x^2+25y^2-z^2-60xy

Answer 1

\[\large 36x^2-60xy+25y^2-z^2 \qquad=\qquad (6x)^2-2(6x)(5y)+(5y)^2-z^2\]
Hmm looks like we can simplify down the x and y's! :)

Answer 2

\[\large \color{royalblue}{a^2-2ab+b^2=(a-b)^2}\]

Answer 3

the problem is what I should do with the z^2

Answer 4

leave the z alone :D

Answer 5

Thank you

Answer 6

the z's are all together already , they cant be simplified further