(20-1-6-2)2 = 112 = 121
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
36y to the second power
The exponent is 2 - from the SECOND power.
18 to the second power is 324. 18 to the second power can also be expressed as 18 squared.
eight to the second power equal to 64
Three squared to the second power is 81.
What is 7.24 -10 to the second power
35 to the second power -5 = 30