= 5С^2 + 5С - B^2 + 9C^2 = 14C^2 - B^2 + 5C
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= 4A^2 + 4A + 1 + 1 - 4A^2 = 4A + 2
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= - 2 * ( X^2 - 4) = - 2X^2 + 8
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(2^(2/3) *а^(2/3) *а^(1/2) *b^(1/2))/(a*b^(1/3)*2^(1/2) = 2^(1/6) *а^(1/6)*b^(1/6)= √2аb - здесь корень шестой степени
<span>(2а)^3 × 4а^-2 / (4а^3)^2=
= 8a^3 * 4a^-2 / 8a^5 =
= 4a / a^5 =
= 4 / a^4
</span>