Mathematics: Hello plz help(pls like fr show me how you got your answer and tyy!

Hello plz help(pls like fr show me how you got - id15221167, swallowcaroline11

Ответ:

khushi83

25.01.2022

Mathematics

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We've been given to find out the value for the given algebraic expression which is,

$:\implies\tt{ \frac{ {x}^{2} - 16 }{x + 4} }$

The most easiest way to solve this kind of problem is to find factors for (x² - 16) and cancelling them with the factor of (x + 4) in denominator. The factors for (x² - 16) are (x + 4) and (x - 4). For cross check,

$:\implies\tt{(x + 4)(x - 4)}$

$:\implies\tt{ {x}^{2} - 16}$

These are correct factors which obeys our expression now as per our question,

$:\implies\tt{ \frac{ {x}^{2} - 16}{x + 4} }$

$:\implies\tt{ \frac{(x + 4)(x - 4)}{x + 4} }$

Cancelling (x + 4) from both numerator and denominator we get answer as,

$:\implies\tt{x - 4}$

The answer for the expression is (x - 4)

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Ответ:

caitlin89

30.06.2020

Mathematics

A teacher made a copy of a map. To make the map easier to see, the teacher enlarged the area of the map by 38%. Let d represent the area of the original map. The expression d + 0.38d is one way to represent the area of the new map. Write two expressions that represent the area of the new map.

Step-by-step explanation:

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Hello plz help
(pls like fr show me how you got your answer and tyy!

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