а)(2а+3б)(3б-2а)-(а-б)(б+а) б)(х-2)(х+2(х-3)(х+3) в)(3-а)^2-8(а+1)^2+5(2-а)(2+а). Created by SashaPro3000. algebra-ru

а)(2а+3б)(3б-2а)-(а-б)(б+а) б)(х-2)(х+2(х-3)(х+3) в)(3-а)^2-8(а+1)^2+5(2-а)(2+а)...

SashaPro3000 @SashaPro3000

July 2022 1 0 Report

а)(2а+3б)(3б-2а)-(а-б)(б+а)
б)(х-2)(х+2(х-3)(х+3)
в)(3-а)^2-8(а+1)^2+5(2-а)(2+а)

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ВладимирБ

Verified answer

А) $9b^{2}-4a^{2}-a^{2}+b^{2}=$
$10b^{2}-5a^{2}$
б) $(x^2-4)(x^2-9)=x^4-9x^2-4x^2+36=$
$x^4-13x^2+36$
в) $9-6a+a^2-8(a^2+2a+1)+5(4-a^2)=$
$9-6a+a^2-8a^2-16a-8+20-5a^2=$
$-12a^2-22a+21$

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pomogite sostavit tablicu istinnosti h ili zx ili y

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