

GPT
a,[imath]x.\sqrt[3]{91-x^{3}}(x+\sqrt[3]{91-x^{3}})=81[/imath]
b,[imath]\sqrt[]{2x+\sqrt[]{x+1}+1 } +\sqrt[]{2x-\sqrt[]{x+1} } -2 \sqrt[]{x+1}=1[/imath]
a,[imath]x.\sqrt[3]{91-x^{3}}(x+\sqrt[3]{91-x^{3}})=81[/imath]
b,[imath]\sqrt[]{2x+\sqrt[]{x+1}+1 } +\sqrt[]{2x-\sqrt[]{x+1} } -2 \sqrt[]{x+1}=1[/imath]