Решить нечётные плиз. Created by annak9692. matematika-ru

Решить нечётные плиз...

annak9692 @annak9692

October 2021 1 16 Report

Решить нечётные плиз

Answers & Comments

NNNLLL54

Verified answer

$7)\; \; 5b+\dfrac{8a-5b^2}{b}=\dfrac{5b^2+8a-5b^2}{b}=\dfrac{8a}{b}=\dfrac{8\cdot 8}{40}=1,6\\\\\\9)\; \; (a+3)^2-2a(3-4a)=a^2+6a+9-6a+8a^2=9a^2+9=\\\\=9(a^2=1)=9\cdot (\frac{1}{9}+1)=9\cdot \frac{10}{9}=10\\\\\\11)\; \; 24ab+2(-2a+3b)^2=24ab+2\, (4a^2-12ab+9b^2)=2\, (4a^2+9b^2)=\\\\=2\, (4\cdot 3+9\cdot 6)=132$

$13)\; \; \dfrac{2c-4}{cd-2d}=\dfrac{2\, (c-2)}{d\, (c-2)}=\dfrac{2}{d}=\dfrac{2}{5}=0,4\\\\\\15)\; \; \dfrac{a^2-4}{2a^2+4a}=\dfrac{(a-2)(a+2)}{2a\, (a+2)}=\dfrac{a-2}{2a}=\dfrac{0,5-2}{2\cdot 0,5}=-1.5\\\\\\17)\; \; \dfrac{a^2+4a}{a^2+8a+16}=\dfrac{a\, (a+4)}{(a+4)^2}=\dfrac{a}{a+4}=\dfrac{-2}{-2+4}=-1$

1 votes Thanks 1

Answers & Comments

Verified answer

glavnaya tema i ideya proizvedeniya aaleksin signalshiki i gornisty

srochnopomogite o kakih obychayah i nravah teh vremyon rasskazyvaet pis

srochno o kakih obychayah i nravah teh vremyon rasskazyvaet pisatel v proi

dayu 50 ballov podumajte i zapishite chto by vy hoteli pomenyat v zhizni okruzhayu

dayu 50 ballov podumajte i nazovite problemy reshenie kotoryh vam by hotelos p

srochno ochen fakty podtverzhdayushie neobhodimost deneg dlya normalnoj raboty

reshite nechyotnye nomera

nechyotnye reshite pozhalujsta

рекомендуемые вопросы

Helpful Links

Helpful Social