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

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) (Show Source): You can put this solution on YOUR website!
f(x)=x^2+7x+9

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.
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