Question

Here is another...
A tv screen is 2 inches longer than it's height. If the diagonal length of the screen is 2 inches more than it's length, what is the diagonal measurement of the screen?

Answer 1

put height = x, length = x+2 and diagonal = x+4 then use pythatoras
\[x^2+(x+2)^2=(x+4)^2\]

Answer 2

\[x^2+x^2+4x+4=x^2+8x+16\]
\[2x^2+4x+4=x^2+8x+16\]
\[x^2-4x-12=0\]

Answer 3

\[(x-6)(x+2)=0\]
\[x-6=0\]
\[x=6\] we can ignore the other answer because it is negative

Answer 4

awesome thank you!!!