For every 30 letters that Maria sent in a month, she received 40 letters. What is the ratio in simplest form of the number of le
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Answer:
Step-by-step explanation:
We'll assume the correct expression to be factored is
One must try to find out if the expression is a perfect square. To test it, we'll take the square root of the first and the last term. If they are exact, we'll procceed with the next step
Since both are exact, we'll test if the middle term is twice the product of both square roots:
We confirm the middle term equals the above expression. All tests confirm the original expression is
The required factoring is
Answer:
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Step-by-step explanation:
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