упростите решение
[tex]( \sqrt{a - 5) {}^{2} } - ( \sqrt{a + 5) {}^{2} } + 9 \sqrt{a} [/tex]
[tex]( \sqrt{a - 5) {}^{2} } - ( \sqrt{a + 5) {}^{2} } + 9 \sqrt{a} [/tex]
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Ответ:
(a - 10√a + 25) - (a + 10√a + 25) + 9√a
-20√a + 9√a
Ответ: -11√a.