so you are going to use the Pythagorean theorem on the smaller triangle to find the connecting side's length

now you can find the bigger triangle's hypotenuse

c=4
The number is 8 because 4 times 8 equals 24 plus 2 is 26
3x+10x+x-2/x+3
14x-2/x+3
7(2x-1)/x+3