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forsale [732]
3 years ago
7

Use the properties of exponents to simplify the expression: 2532

Mathematics
1 answer:
Vlad1618 [11]3 years ago
6 0

Question

Use the properties of exponents to simplify the expression: 25^{\frac{3}{2}}

Answer:

25^{\frac{3}{2}} = 125\

Step-by-step explanation:

Given

25^{\frac{3}{2}}

Required

Simplify

25^{\frac{3}{2}}

Apply the following law of indices

a^{\frac{m}{n}} = (a^m)^{\frac{1}{n}}

So, the expression becomes

25^{\frac{3}{2}} = (25^3)^{\frac{1}{2}}

Express 25^3 as 15625

25^{\frac{3}{2}} = (15625)^{\frac{1}{2}}

In indices: a^{\frac{1}{2}} = \sqrt a

So, we have:

25^{\frac{3}{2}} = \sqrt{15625

25^{\frac{3}{2}} = 125

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<em><u>x²</u></em><em><u>+</u></em><em><u>2</u></em><em><u>x</u></em><em><u>+</u></em><em><u>7</u></em><em><u>-</u></em><em><u>2</u></em><em><u>1</u></em><em><u>=</u></em><em><u>0</u></em>

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