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OpenStudy (anonymous):
Solve x^2+7x-10=0 Then find the x-intercepts of f(x)=x^2+7x-10
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OpenStudy (anonymous):
well, you have to factor this inorder to find the zeros. Although if you have a graphing calculator you can just graph it and use the calc to find the zeros.
OpenStudy (anonymous):
Now, can you think of two numbers that multiply to be -10 and add to be 7?
OpenStudy (anonymous):
yeah i wish i had a cal. my battery died
OpenStudy (anonymous):
?
OpenStudy (anonymous):
can not think of one.
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OpenStudy (anonymous):
are u sure its not +10 at the end , becuase if it is then it factors easily. If not then you have to use the quadratic fromula
OpenStudy (anonymous):
no it is - 10
OpenStudy (anonymous):
the use the quadratic formula
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