Question:
Add.

[tex]\sqrt[3]{7}+\sqrt{7}[/tex]

A. [tex]\sqrt[4]{7}[/tex]
B. [tex]\sqrt[3]{14}[/tex]
C. [tex]\sqrt[4]{14}[/tex]
D. [tex]\sqrt[3]{49}[/tex]



Answer :

To solve the problem, we need to find the numerical values of [tex]\(\sqrt[3]{7}\)[/tex] and [tex]\(\sqrt{7}\)[/tex], then add these values together, and compare the result with the given choices.

First, let's calculate [tex]\(\sqrt[3]{7}\)[/tex]:
[tex]\[ \sqrt[3]{7} \approx 1.912931182772389 \][/tex]

Next, let's calculate [tex]\(\sqrt{7}\)[/tex]:
[tex]\[ \sqrt{7} \approx 2.6457513110645907 \][/tex]

Now, add these two values:
[tex]\[ \sqrt[3]{7} + \sqrt{7} \approx 1.912931182772389 + 2.6457513110645907 = 4.558682493836979 \][/tex]

Next, we compare this result with the provided choices:

(A) [tex]\(\sqrt[4]{7}\)[/tex]:
[tex]\[ \sqrt[4]{7} \approx 1.6265765616977856 \][/tex]

(B) [tex]\(\sqrt[3]{14}\)[/tex]:
[tex]\[ \sqrt[3]{14} \approx 2.4101422641752297 \][/tex]

(C) [tex]\(\sqrt[4]{14}\)[/tex]:
[tex]\[ \sqrt[4]{14} \approx 1.9343364202676694 \][/tex]

(D) [tex]\(\sqrt[3]{49}\)[/tex]:
[tex]\[ \sqrt[3]{49} \approx 3.6593057100229713 \][/tex]

As we can see, the correct answer is the one closest to our calculated result [tex]\(4.558682493836979\)[/tex]. Therefore:

[tex]\[ \boxed{\sqrt[3]{49}} \][/tex]