Question

49. If √(7x^3 - 8) = -x, then value of x is​

Answer 1

Step-by-step explanation:

√(7x^3-8) = -x

on squaring both side

7x^3-8 = -x^2

7x^3+x^2= 8

x^2(7x+1) =8

x^2 =8 ; 7x+1= 8

x=√8 ; x= 1

there are the required values of X.