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x2+5x-25

-> What number adds to give 25 and multiplies to give 25?

-> None, this problem cannot be factored; roots must be found using the quadratic formula

x = (-b+/- sqrt (b2-4ac))/2a

x = -5+/- sqrt (52-4(1)(-25))/2(1)

x = -5 - sqrt (125)/2

x = -5 + sqrt (125)/2

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Q: How do you factor x2 plus 5x-25?
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