Упростим выражение (\(\sqrt[3]{a}\) - \(\sqrt[3]{b}\)) (\(\sqrt[3]{a^2}\) + \(\sqrt[3]{ab}\) + \(\sqrt[3]{b^2}\)) = (\(\sqrt[3]{a}\) - \(\sqrt[3]{b}\)) ((\(\sqrt[3]{a}\))² + \(\sqrt[3]{a}\) ⋅ \(\sqrt[3]{b}\) + (\(\sqrt[3]{b}\))²) = (\(\sqrt[3]{a}\))³ - (\(\sqrt[3]{b}\))³ = a - b.
Ответ: а - b.