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caraxphernelia

caraxphernelia

04.08.2020 •

Mathematics

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Ответ:

Isa035

30.01.2022

F. $\frac{3}{2}$

Step-by-step explanation:

$\frac{a + 2b}{b} = \frac{7}{2}$

Cross multiply:

7b= 2(a +2b)

Expand:

7b= 2a +4b

Bring all common variables to 1 side:

7b -4b= 2a

3b= 2a

divide by 2 on both sides:

$\frac{3}{2} b = a$

divide by b on both sides:

$\frac{3}{2} = \frac{a}{b} \\ \frac{a}{b} = \frac{3}{2}$

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Ответ:

almighty3120

11.04.2023

Let x^2, (x+1)^2 be the perfect squares.the difference is (x+1)^2 - x^2= 2x+1.hence it is an odd number.

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