Question

11. Solve (√15)⁴x_⁴
-5²x-3 = 20​

Answer 1

Step-by-step explanation:

(√15)^4 x^4 -5² x-3=20

=>15²×x^4-5² x-3= 20

=>225×x^4-25×x-3=20

=>225×x^4-75×3x=20

=>225x^4-225x=20

225x(x³-1)=20

x ³-1=20/225x

x³-1=4/45x

x³=4/45x+1

x³=4+45x/45x