Question

SOMEONE PLEASE HELP
The equation is attached below

Answer 1

convert them to exponents
\[5(7)^{\frac{1}{4}}-8(7)^{\frac{1}{3}}-2(7)^{\frac{1}{4}}-(7)^{\frac{1}{3}}\]
Collect like terms
\[(5-2)7^{\frac{1}{4}}+(-8-1)7^{\frac{1}{3}}\to (3)7^{\frac{1}{4}}+(-9)7^{\frac{1}{3}}\]
Convert the exponents to their common denominators

\[(3)7^{\frac{1}{4}}+(-9)7^{\frac{1}{3}}\to (3)^{\frac{12}{12}}7^{\frac{3}{12}}+(-9)^{\frac{12}{12}}7^{\frac{4}{12}}\]

Answer 2

the choices i have to choice from are:

Answer 3

Sorry, got sloppy.
If you look at what is left you see that
\[3\sqrt[4]{7}-9\sqrt[3]{7}\] was my solution and thats the last answer.

Answer 4

note that \[X^{\frac{1}{n}} =\sqrt[n]{X}\]

Answer 5

ok thanks (: