(√6+√14)² 6+2√84+14 20+2√84 2*(10+√84)---------------- = -------------------- = --------------- = --------------------- =210+√84 10+√84 10+√84 10+√84-___________________________________________________________∛3 *∛18 ∛54 ∛(27*2) 3∛2 -------------- = ---------- = ----------- = ------------ =3∛2 ∛2 ∛2 ∛2________________________________________________________⁴√64* ⁸√64=⁴√2⁶* ⁸√2⁶ =2⁶/₄ *2 ⁶/₈ =2⁶/₄⁺⁶/₈ =2¹⁸/₈= 2⁹/₄=2² ¹/₄=4 ⁴√2_________________________________________________________√(55-3х)=7 ∛(х+5)=5√(55-3х)²=7 ² ∛(х+5)³=5³(55-3х)=49 х+5 =12555-49=3х х=1206=3хх=2________________________________________________________√(-63-16х)=-х -63-16х≥0 -63≥16х х≤-63/16 х≤ -3 15/16√(-63-16х)²=-х ²(-63-16х)=х² х²+63+16х =0D= 256- 252=4x₁=(-16+2)/2=-7x₂=(-16-2)/2=-9 это меньший ответ