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3 years ago

25 points

Mathematics

1 answer:

Zielflug [23.3K]3 years ago

8 0

Answer: The correct answer is: [B]:

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" $\frac{-3}{ x}$ " .

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Step-by-step explanation:

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Note: A number; "divided by a variable" ; is Not a "polynomial" .

Answer choice: [B]: " $\frac{-3}{ x}$ " ;

is a "number; divided by a "variable" ; and as such, is Not a "polynomial".

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tekilochka [14]

Answer:

A. $25x² - 64$

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Step-by-step explanation:

A. The area of the shaded region = area of the whole large square - area of the 4 smaller squares

= (5x*5x) - 4(4*4)

Area of shaded region = $25x^2 - 64$

B. The expression, $25x^2 - 64$ , is the difference of two perfect squares, 25x² and 64. Therefore, apply the rule of factoring difference of two perfect squares.

Thus, $a^2 - b^2 = (a + b)(a - b)$

Therefore, the expression of the are of the shaded region can be expressed in factored form as:

$25x^2 - 64 = (5x + 8)(5x - 8)$

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dlinn [17]

Answer:

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weqwewe [10]

Answer:

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Step-by-step explanation:

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