a) 3√(x-2)3-4 = 20 3√√(x - 2)² √√(x-2)³ = - (x - 2) = 8 [(x-2)] x - 2 = 68 = + or x-2- x = or x = b) Check for extraneous solutions: 1) Given 2) Add 4 3) Divide by 3 72 4)√xn =xm I5) Cancel Rational exponent m 6) (x) = |x| if n or m is even 7) Properties of Absolute value 8) Add 2 For​