Eighty nine minus seventy six equals thirteen
2
All the time
15.
x = -2/3,7/6
Eighty nine minus seventy six equals thirteen
t2 - 36 = (t - 6)(t + 6) This pattern is often called the difference of squares.
You can use the formula for factoring the difference of two squares in this case.
4
2
39.
It is: 9-4 = 5
All the time
15.
4 squared minus 2 squared equals 12
x = -2/3,7/6
B squared equals c squared minus a squared then to find B take the square root of you answer for b squared