3 years ago

QUICK PLEASE Which expression is equivalent to 45−20s ? 25−s B 5(9−4s) C s(45−20) D 5s(9−4)

Mathematics

1 answer:

Ede4ka [16]3 years ago

8 0

Answer:

B. 5(9−4s)

Step-by-step explanation:

if you simplify that option it would be

45 - 20s

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$\qquad\qquad\huge\underline{{\sf Answer}}♨$

Here's the solution ~

$\qquad \sf \dashrightarrow \: \dfrac{2 {}^{n} - 1}{ {4}^{n} - 1}$

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Now we will use this identity in denominator

[ a² - b² = (a + b)(a - b) ]

$\qquad \sf \dashrightarrow \: \dfrac{ \cancel{(2 {}^{n} - 1)}}{ {( {2}^{n} }^{} + 1) \cancel{( {2}^{n} - 1)}}$

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