Igot −1.43844719 and −5.56155281
use the quadratic formula to solve x2 + 7x + 8 = 0. estimate irrational solutions to the nearest tenth.

Our equation is in the form of

So in this case:







Simplify exponent and the denominator:



Multiply:



Subtract:



Simplify the square root:



Now this breaks into two equations.



and



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Add:



Divide:



Round to the nearest tenth:



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Subtract:



Divide:



Round to the nearest tenth:



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