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wariber [46]
2 years ago
13

Can someone please help me with the second problem?

Mathematics
2 answers:
frez [133]2 years ago
6 0
<h2><u>EXPLANATION</u></h2>

<u></u>\frac{(x+3)^2}{x-5} \div \frac{x^2 - 9}{x^2 - 8x +15} \\ = \frac{x^2 + 9}{x-5} \div \frac{x^2 - 9}{x^2 - 8x +15} \\ = \frac{x + 9}{-5} \div \frac{-9}{-8x + 15} \\ = \frac{x}{-5} \div \frac{-1}{-8x + 15} \\ = - \frac{x(8x-15)}{5}<u></u>

Note : You only need to substitute, divide and eliminate the numbers to simplify.

Hope it helps.

<h2><u>ANSWER DETAILS</u></h2>

<em>Subject : Mathematics</em>

<em>Class : 9th Grade</em>

<em>Chapter : -</em>

<em>Categorization Code : -</em>

<em>Keywords : Substitution, Algebra. </em>

Serga [27]2 years ago
4 0

Answer:

\frac{x + 3}{x - 5}

Step-by-step explanation:

The first order of business is to get the denominator the same on both fractions. To do this change the 2nd terms denominator into intercept form. See below.

{x}^{2}  - 8x + 15 = (x - 5)(x - 3)

Do this for the numerator on the 2nd term also.

{x}^{2}  - 9 = (x  - 3)(x + 3)

Now we can exclude the (x-3) from both the numerator and denominator of the second term. Now we have the equation below.

\frac{(x + 3 {)}^{2} }{x - 5}  \div  \frac{ x + 3}{x - 5}

Now the denominators are the same. Now we need to exclude x+3 from both numerators. Notice that in the firt term, you do not exclude both x+3, only 1.

\frac{x + 3}{x - 5}

There is your answer

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