Question

9x²-49=0x^3-3=3/84(X+1)²-81=0

Answer 1

9x²-49=0

9x^2=49,

x^2=49/9

x1=7/3,x2=-7/3

x^3-3=3/8

x^3=27/8,

x=3/2

4(X+1)²-81=0.

(x+1)^2=81/4

x+1=9/2,x+1=-9/2

x1=9/7,x2=-11/2