SOLUTION: 424 = x^2 + 36x

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Question 619445: 424 = x^2 + 36x
Found 2 solutions by jim_thompson5910, ewatrrr:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
424+=+x%5E2+%2B+36x

0+=+x%5E2+%2B+36x+-+424

x%5E2+%2B+36x+-+424+=+0

Now use the quadratic equation to solve for x.

x+=+%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29

x+=+%28-%2836%29%2B-sqrt%28%2836%29%5E2-4%281%29%28-424%29%29%29%2F%282%281%29%29

x+=+%28-36%2B-sqrt%281296-%28-1696%29%29%29%2F%282%29

x+=+%28-36%2B-sqrt%282992%29%29%2F2

x+=+%28-36%2Bsqrt%282992%29%29%2F2 or x+=+%28-36-sqrt%282992%29%29%2F2

x+=+%28-36%2B4%2Asqrt%28187%29%29%2F2 or x+=+%28-36-4%2Asqrt%28187%29%29%2F2

x+=+-18%2B2%2Asqrt%28187%29 or x+=+-18-2%2Asqrt%28187%29

So the solutions are x+=+-18%2B2%2Asqrt%28187%29 or x+=+-18-2%2Asqrt%28187%29

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi, Re: TY, this is a trinomial (3 different type of terms) 

424 = x^2 + 36x 

 x^2 + 36x- 424 = 0

x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+

x+=+%28-36+%2B-+sqrt%28+2992+%29%29%2F%282%29+

x is -45.35, 9.35  (rounded to 2 decimal points)