What is he solution set of 7^x-2/10=square root of seven

Are you asking for the square root? Because that's 2.645 ... Now the equation, in order to see if it is the solution set, go in your calculator, or computer, type them in, and click 2nd graph, and it should show all of the solutions side by side.

4 3. ▫ 3x2-4=3. ▫ Need to isolate the square root first! ▫ 3x2 = 7. ▫ x2 = 3. 7. 7. 2. ±. = x. 3. 3. ± x ... x = - 4±6. ▫ Both are rational, need to evaluate! ▫ x = - 4+6, - 4 - 6 x 4+6, 4 6. ▫ x = 2, - 10 Find value of each solution when rational on right