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Popular >

simplify (2.1^2-4)/(2.1-2)

Solution

simplify

\frac{2. 1 ^{2} - 4}{2.1 - 2}

Solution

4.1

Solution steps

\frac{2. 1 ^{2} - 4}{2.1 - 2}

Factor

2. 1^{2} - 4 : (2.1 + 2) (2.1 - 2)

= \frac{( 2.1 + 2 ) ( 2.1 - 2 )}{2.1 - 2}

\frac{( 2.1 + 2 ) ( 2.1 - 2 )}{2.1 - 2} = \frac{4.1 \cdot 0.1}{0.1}

= \frac{4.1 \cdot 0.1}{0.1}

Cancel the common factor:

0.1

= 4.1

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Frequently Asked Questions (FAQ)

What is (2.1^2-4)/(2.1-2) ?
The solution to (2.1^2-4)/(2.1-2) is 4.1