39
-39
-39
x2 + 2x - 38 = 0 ∴ x2 + 2x + 1 = 39 ∴ (x + 1)2 = 39 ∴ x + 1 = ±√39 ∴ x = -1 ±√39
No.
You multiply 39 by itself.
39 squared is 1521.
Assuming that it is only the x that is being squared. (-21x^2)/39 = (-7x^2)/13
4u2 - 6u - 39 does not have rational factors.
6 squared is 36. 36 plus 3 is 39
39
1521 - 39 squared 1600 - 40 squared 1681 - 41 squared 1764 - 42 squared
The difference is 39.
I'm worried that I may not understand your question. If you mean, "What is the numerical answer to 39 squared?" IE., 39^2 or 39x39, you can type it into a calculator or use long multiplication to find out that it is 1521. If you are asking about what 'squared' is: Squaring a number is the same as multiplying it by itself 2 times, so 39^2 = 39 x 39 We can also say that the number 39 is being raised to the power of 2. Cubing a number is multiplying it by itself 3 times (to the power of 3), so 39^3 = 39 x 39 x 39 Note: The little ^ thing indicates that the 2 and 3 coming after it are smaller and written up in the corner.
-39
A = 540 units squared.
64 - 25 = 39