Answer:
[tex]14 {x}^{3} \sqrt[3]{x} [/tex]
Step-by-step explanation:
We have
[tex]4 \sqrt[3]{ {x}^{10} } + 5x {}^{3} \sqrt[3]{8x} [/tex]
[tex]4 \sqrt[3]{ {x}^{9} \times x} + 5x {}^{3} \sqrt{8 \times x} [/tex]
[tex]4x {}^{3} \sqrt[3]{x} + 10 {x}^{3} \sqrt[3]{x} [/tex]
We can add these radicals since the radicand us equal.
[tex]14 {x}^{3} \sqrt[3]{x} [/tex]
