1)(x-5)^2=(9+x)^2 2)2(3x-1/2)-7<3(x+2/3)+1 3)a^10*(a^2)^-4

Question

1)(x-5)^2=(9+x)^2
2)2(3x-1/2)-7<3(x+2/3)+1<br> 3)a^10*(a^2)^-4

Answer 1

1)  x^2-10x+25=81+18x+x^2
-28x-56=0
-28x=56
x=-2