Suppose you have (x5)(x6); Just remember that you're counting factors.
x5 = (x)(x)(x)(x)(x) and x6 = (x)(x)(x)(x)(x)(x)
Now multiply them together:
(x5)(x6) = (x)(x)(x)(x)(x)(x)(x)(x)(x)(x)(x) = x11
Why x11? Well, how many x's are there? Five x factors from x5, and six x factors from x6, makes 11 x factors total.
Can you see that whenever you multiply any two powers of the same base, you end up with a number of factors equal to the total of the two powers? In other words, when the bases are the same, you find the new power by just adding the exponents:
Exponent is repeated multiplication
And exponent
a power or exponent.
exponent
an exponent
An exponent of 1 can be ignored. In the same way that multiplication by 1 can be ignored.
The exponent for a factor is the number of times that the factor appras in the multiplication. An exponent of 1 is not usually written out. So, 2*2*2*3*3*3*3*5 = 23*34*5
powers, or exponent
Grouping Symbols, Exponent, Multiplication, Division, Addition, Subtraction
parenthesis, exponent, multiplication, division, addition, subtraction
the base and the laws of exponent
Because it is derived so easily from simple multiplication and division of variables. It is so very intuitive. Multiply x by x and you have x2 do it again and it's cubed etc.