а^2-16\2a^2+8 a при а=-0,2. Created by prefdud. matematika-ru

а^2-16\2a^2+8 a при а=-0,2...

prefdud @prefdud

July 2022 2 5 Report

а^2-16\2a^2+8 a при а=-0,2

sedinalana

Verified answer

(a-4)(a+4)/[2a(a+4)]=(a-4)/(2a)
a=-0,2
(-0,2-4)/(-0,2*2)=-4,2/(-0,4)=10,5

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zhenyaM2002

Verified answer

$\frac{a^2-16}{2a^2+8a }= \frac{a^2-4^2}{2a(a+4)} = \frac{(a-4)(a+4)}{2a(a+4)} = \frac{a-4}{2a}$
при а= -0,2
$\frac{-0.2-4}{2*(-0.2)} = \frac{-4.2}{-0.4} = 10.5$

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Answers & Comments

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