Please help me with this question

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

Hi, can anyone show me how to do this problem? 100 points for this. in advance

Urgent question in mathematics. solve this to get 15 points[tex] {2}^{100} - {2}^{99} - {2}^{98} {2}^{2} - {2}^{1} - {2}^{0}[/tex]a) 0 b) 1 c) 2 d) 2^50