Solve the equation: 49s^2+84s=-36

its asking for the solution..is the answer (7s+6)^2?

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- November 3rd 2008, 02:32 PMmikejones1 Quick Factor
Solve the equation: 49s^2+84s=-36

its asking for the solution..is the answer (7s+6)^2? - November 3rd 2008, 02:46 PMmasters
- November 3rd 2008, 02:49 PMclic-clac
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...