Exponents
define an exponent
tells us how many times the base is being done
52 x 5
53
What do you do to the exponents when dividing with like bases?
subtract exponents
(52)5
510
2.65 x 106
2650000
53
125
76 x 74
710
a10b5 / ab3
a9b2
(5x)7 = 521
X = 3
2.65 x 10-5
0.0000265
5x = 15,625
x = 6
(2x3y2z) (5x2y2)
10x5y4z
5x9y3 / x8y3
5x
(2a2b5)3
8a6b15
Write in scientific notation
1980000000
1.98 x 109
x2 = 81
x = 9
(-ab2) (a5b8)
(-a6b10)
36x5y5z / 6x2y2
6x3y3z
(a2b10)4 (ab)
a9b41
Write in scientific method
0.000000000000566
5.66 x 10-13
104
10,000
(20c5t6) (0.5ab)
10abc5t6
49x10y5 / 7x3y5z
7x7 / z
(-a3b4) (a4b)5
-a23b9
7.89 x 10x = 78900000000
x = 10