Question

6 fourth root of 9 end root plus 2 cubed root of 9 end root plus 2 fourth root of 9 end root minus 3 cubed root of 9

Answer 1

??
explain

Answer 2

hiya @carolschroeder
so just so i've got this correct, is ur eqn...?
\[(6\times \sqrt[4]{9}) + (2\times \sqrt[3]{9}) + (2\times \sqrt[4]{9}) - (3\times \sqrt[3]{9})\]

Answer 3

if so, by adding and subtracting like terms, that would equal
\[(8\times \sqrt[4]{9}) - (1\times \sqrt[3]{9})\]

Answer 4

there cannot be a simplified answer

Answer 5

now as 9 = 3^2 (3 squared)
that would be 8 * (3^2)^1/4 - 1* (3^2)^1/3
so that equals 8* 3^(2/4) - 3^(2/3)
equals 8* 3^(1/2) - 3^(2/3)
so :
\[(8\times3^{1/2}) - 3^{2/3} = 8\times \sqrt{3}) - 3^{2/3}\]