Can someone check my work in solving the equation for s? 81s^2+36s=-4. I came up with {-2/9,-2/9}. Would the final answer be 0 or -2/9?

Question

asnaseer · Answer

what made you think the answer is 0?

psymon · Answer

It would just be -2/9. You apparently did the work correctly to get to -2/9, just not sure what extra things you did.

anonymous · Answer

I came up with -2/9,-2/9 I figured that would just zero itself out.?.?

anonymous · Answer

Got it Psymon, thx for ur assistance. thx.

asnaseer · Answer

no - in a quadratic equation you can have:

1) two distinct roots
2) two identical roots
3) no solutions

what you found was two identical roots.

asnaseer · Answer

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