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Mathematics 18 Online
OpenStudy (anonymous):

7x²-31x-20

OpenStudy (midhun.madhu1987):

|dw:1410188017769:dw| i Just found 2 numbers whose product is -140 and sum is -31 and I got the numbers as -3 5 and 4. Then split the middle term -31x into (-35x + 4x).. can u complete the rest by taking the common factors from the first and second bracket?

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