SOLUTION: find the zeros of f(x)=x^2+7x+9 by using quadratic formula

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Question 391034: find the zeros of f(x)=x^2+7x+9 by using quadratic formula
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
f(x)=x^2+7x+9
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x=(-7+-sqrt[7^2-4*1*9])/2*1
x=(-7+-sqrt[49-36])/2
x=(-7+-sqrt13)/2
x=(-7+-3.6)/2
x=(-7+3.6)/2
x=-3.4/2
x=-1.7 ans.
x=(-7-3.6)/2
x=-10.6/2
x=-5.3 ans.