(Х-5)в квадрате - 25 =0; 0,25а в третьей степени - а =0; У в третьей степени + 3у в квадрате- у =0. Created by sonyashna. algebra-ru

(Х-5)в квадрате - 25 =0; 0,25а в третьей степени - а =0; У в третьей степени +...

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(Х-5)в квадрате - 25 =0;
0,25а в третьей степени - а =0;
У в третьей степени + 3у в квадрате- у =0

Answers & Comments

julyap $1)(x-5) ^{2} -25=0 \\ x^{2} +25-10x-25=0 \\ x^{2} -10x=0 \\ x(x-10)=0 \\ x=0 \\ x-10=0 \\ x=10 \\ \\ 2)0.25a ^{3} -a=0 \\ a(0.25a ^{2} -1)=0 \\ a=0$

$\\ 0.25a ^{2} -1=0 \\ (0.5a-1)(0.5a+1)=0 \\ 0.5a=1 \\ a=1:0.5 \\ a=2 \\ \\ 0.5a=-1 \\ a=-1:0.5 \\ a=-2$

y $3) y^{3} +2y-y ^{2} =0 \\ y(y ^{2} -y+2)=0 \\ y=0 \\ y ^{2} -y+2=0 \\ D=1-4-=-3\ \textless \ 0$

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Answers & Comments

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iz privedennyh smesej vyberite gomogennuyu a vozduh b krov c mutnaya voda8a6c6997416cb0422f2db66c3f08af12 15007

molyarnyj obem te obem 1 molya zhidkoj vody raven

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