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Popular >

simplify (1.9^2-4)/(1.9-2)

Solution

simplify

\frac{1. 9 ^{2} - 4}{1.9 - 2}

Solution

3.9

Solution steps

\frac{1. 9 ^{2} - 4}{1.9 - 2}

Factor

1. 9^{2} - 4 : (1.9 + 2) (1.9 - 2)

= \frac{( 1.9 + 2 ) ( 1.9 - 2 )}{1.9 - 2}

\frac{( 1.9 + 2 ) ( 1.9 - 2 )}{1.9 - 2} = \frac{3.9 ( - 0.1 )}{- 0.1}

= \frac{3.9 ( - 0.1 )}{- 0.1}

Cancel the common factor:

- 0.1

= 3.9

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Frequently Asked Questions (FAQ)

What is (1.9^2-4)/(1.9-2) ?
The solution to (1.9^2-4)/(1.9-2) is 3.9