Can someone please factor this expression 27/x³- 8

Mathematics

2 answers:

almond37 [142]3 years ago

6 0

Answer:

(3x-2) (9xsquare+6x+4)

NISA [10]3 years ago

4 0

Answer:

Answer is below

Step-by-step explanation:

$\frac{27}{x^{3} } -8= (\frac{3}{x})^{3} -2^{3} =(\frac{3}{x} -2)(\frac{9}{x^{2}}+\frac{6}{x}+4)$

( from formula (a³ – b³) = (a – b)(a² + b² + ab) )

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Replace the value of x:

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At the beginning of an environmental study, a forest covered an area of 1500 km2 . Since then, this area has decreased by 9.8% e

fredd [130]

Answer:

$A(t)=(0.902)^t \cdot 1500$ $[km^2]$

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In this problem, the initial area of the forest at time t = 0 is

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So for instance, after 1 year, the area is

$A_1 = A_0 \cdot \frac{90.2}{100}=0.902 A_0$