When you multiply a number by itself, you get the "second power" of the number.
That's also called the "square" of the number.
Here are some examples:
The second power of 5 is (5 x 5) = 25.
The second power (square) of 10 is (10 x 10) = 100.
The square (second power) of 6 is (6 x 6) = 36.
The square of 3.1 is (3.1 x 3.1) = 9.61.
12 to the second power is 144...2 to the second power is 4, any # to the second power is the # times itself.
The exponent is 2 - from the SECOND power.
68 to the second power is 4624 68x68=4624
35 to the second power is the same as 35x35=1225.
5 to the second power = 5*5 = 25
2a to the second power. If you combine the like terms, (a to the second power + a to the second power), it would be the same as 2a to the second power.
12 to the second power is 144...2 to the second power is 4, any # to the second power is the # times itself.
8x to the second power is 64x2
27
what is 7x to the third power + 6x to the second - 2
The exponent is 2 - from the SECOND power.
36y to the second power
18 to the second power is 324. 18 to the second power can also be expressed as 18 squared.
208,000,000
x
68 to the second power is 4624 68x68=4624
Three squared to the second power is 81.