<span>To find the greatest perfect square that is a factor of 396, first we check what are the factors of 396 Factors of 396 are: 1,2,3,4,6,9,11,12,18,22,33,36,44,66,99,132,198,396 Now we check which is the greatest perfect square in these. 396, 198, 132, 99, 66,44 are not perfect square, so 36 is the largest perfect square from the factors of 396, 6 x 6 = 6</span>² = 36
I used a graphing tool to graph the two equations together. When graphed, the equations intercept (5,7) and (-1,-5). Therefore, they are the solutions to the system.
Since the bases are different, you'll have to change them even if they have a exponent or not. If you dunno how to make the denominators the same, just multiply the two by eachother.
Example) 1/2 - 3/4
Multiply 2 and 4 together, and then multiply the 4 to the one also. Multiply 2 to four and also to the 3.