Simplify the Expression: 5^-3 × 5^0 × 5^2 × 5^5 Using Laws of Exponents

Question

53505255= 5^{-3}\cdot5^0\cdot5^2\cdot5^5=

Video Solution

Solution Steps

00:00 Solve the following expression
00:03 When multiplying powers with the same base, we add the exponents
00:10 This formula applies to any number of bases
00:25 Apply the formula to the given problem
00:34 Let's calculate the power
00:37 Here is the solution

Step-by-Step Solution

We use the power property to multiply terms with identical bases:

aman=am+n a^m\cdot a^n=a^{m+n} Keep in mind that this property is also valid for several terms in the multiplication and not just for two, for example for the multiplication of three terms with the same base we obtain:

amanak=am+nak=am+n+k a^m\cdot a^n\cdot a^k=a^{m+n}\cdot a^k=a^{m+n+k} When we use the mentioned power property twice, we could also perform the same calculation for four terms of the multiplication of five, etc.,

Let's return to the problem:

Keep in mind that all the terms of the multiplication have the same base, so we will use the previous property:

53505255=53+0+2+5=54 5^{-3}\cdot5^0\cdot5^2\cdot5^5=5^{-3+0+2+5}=5^4 Therefore, the correct answer is option c.

Note:

Keep in mind that 50=1 5^0=1

Answer

54 5^4