SOLUTION: Please help: What is the solution for x^2+7x-4=0? What are the x intercepts for: f(x)=x^2+7x-4

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equation Customizable Word Problems -> SOLUTION: Please help: What is the solution for x^2+7x-4=0? What are the x intercepts for: f(x)=x^2+7x-4      Log On


   

Question 342607: Please help:
What is the solution for x^2+7x-4=0?
What are the x intercepts for:
f(x)=x^2+7x-4
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Use the quadratic formula,
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%28-4%29+%29%29%2F%282%2A1%29+
x+=+%28-7+%2B-+sqrt%28+49%2B16+%29%29%2F%282%29+
highlight%28x+=+%28-7+%2B-+sqrt%28+65%29%29%2F%282%29%29+