Question

could someone help me with this final equation please?

Answer 1

\[x ^{3}-15x ^{3 \over 2}+26=0\]

Answer 2

\[x ^{3/2}=t\]

Answer 3

the quadratic eq is \[t ^{2}-15t +26=0\]

Answer 4

t = 13; t=2

(t-13)(t-2)

Answer 5

\[t ^{2}-15t+26=t ^{2}-13t-2t+26=0\]

Answer 6

yes the two roots of t are t= 13 or t= 2

Answer 7

13 = x^(3/2)

169 = x^3

cbrt(169) = x

Answer 8

ohhh ok. Thanks you 2!

Answer 9

cbrt(4) = x