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OpenStudy (anonymous):
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jimthompson5910 (jim_thompson5910):
hint: you can solve x^2 - 21x - 100 = 0 for x using the quadratic formula. That will help you find the two numbers
jimthompson5910 (jim_thompson5910):
correct
jimthompson5910 (jim_thompson5910):
4 plus -25 = -21 4 times -25 = -100
jimthompson5910 (jim_thompson5910):
so now you solve x^2 + 21x - 100 = 0 for x using the quadratic formula to help you find the two numbers
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