Solve the equation: 49s^2+84s=-36
its asking for the solution..is the answer (7s+6)^2?
When you solve such an equation, your answer should contain no "s", which is the unknown!
But your answer shows that you've seen the perfect squares. Then you just have to see that 84=2.6.7 and your equation is now:
(7s)² + 2.6.7s + 6² = 0
(7s + 6)²=0
So you have only one solution, which is...