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OpenStudy (anonymous):
How many solutions are there for the equation? x2 + 9x = -7 A. 2 B. 1 C. 0
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OpenStudy (anonymous):
Factor it
OpenStudy (anonymous):
well first do this x^2 + 9x + 7 = 0 then factor
OpenStudy (anonymous):
nvm it doesn't factor use the quadratic formula
OpenStudy (anonymous):
actually because it is just asking for the number of solutions all you need to do is this part -->b^2-4ac and if that is a negative number then there is no solutions and if it is a positive there are 2
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