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erastova [34]
3 years ago
12

Help plz:))) I’ll mark you BRAINLIEST

Mathematics
1 answer:
Virty [35]3 years ago
5 0

Answer:

If i'm not mistaken X=3 and Y=16

hope his helps

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What is the least common denominator of the rational expressions below?<br> 1/x^2 - 4/3x^2+15x
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Answer:

The LCD is 3x²

The other two denominators can be factors of 3x²

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<em>To </em><em>check</em><em> </em><em>the </em><em>validity</em><em>,</em><em> </em><em>substitute</em><em> </em><em>a </em><em>value</em><em> </em><em>for</em><em> </em><em>x </em><em>and </em><em>calculate</em><em> </em><em>the</em><em> </em><em>numbers</em><em>.</em>

<em>For</em><em> </em><em>example</em><em> </em><em>let </em><em>x </em><em>=</em><em> </em><em>3</em>

<em>The </em><em>original</em><em> </em><em>expression</em><em> </em><em>becomes</em><em> </em>

<em>1/3² + 4/3(3²) - 15(3)</em>

<em>1</em><em>/</em><em>9</em><em> </em><em>+</em><em> </em><em>4</em><em>/</em><em>2</em><em>7</em><em> </em><em>-</em><em> </em><em>4</em><em>5</em>

<em>With</em><em> </em><em>the</em><em> </em><em>LCD </em><em>it </em><em>is</em>

<em>3</em><em>/</em><em>2</em><em>7</em><em> </em><em>+</em><em> </em><em>4</em><em>/</em><em>2</em><em>7</em><em> </em><em>-</em><em> </em><em>1</em><em>2</em><em>1</em><em>5</em><em>/</em><em>2</em><em>7</em>

5 0
3 years ago
Read 2 more answers
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