Question

Simplify the expression.

v686a4y?
• A.
• B. 7,27 1/223°
O c. 7223 1229
O D.

Answer 1

A

Explanation:

`\sqrt[3]{686x^(4)y^(7)} = \sqrt[3]{343*2x^(3+1)*y^(6+1)}=\sqrt[3]{343*2x^(3)*y^(6)*xy}=\sqrt[3]{7^(3)}\sqrt[3]{x^(3)}\sqrt[3]{y^(6)}\sqrt[3]{2xy}=7xy^(2)\sqrt[3]{2xy}`