SOLUTION: Problem: x^2+7x=1 This is the answer I got, is it correct? x = -7/2 ±√53/2

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Problem: x^2+7x=1 This is the answer I got, is it correct? x = -7/2 ±√53/2      Log On


   

Question 68671: Problem: x^2+7x=1
This is the answer I got, is it correct?
x = -7/2 ±√53/2
Answer by rmromero(383) About Me  (Show Source):
You can put this solution on YOUR website!

x%5E2+%2B+7x+-+1+=+0

You can use Quadratic Formula
ax^2 +bx + c = 0, therefore a = 1, b = 7 c = -1

x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x+=+%28-7+%2B-+sqrt%28+7%5E2-4%2A1%2A-1+%29%29%2F%282%2A1%29+
x+=+%28-7+%2B-+sqrt%28+49%2B4%29%29%2F%282%29
x+=+%28-7+%2B-+sqrt%2853%29%29%2F%282%29

You got the correct answer .