show that: x-2 is a factor of 5xsquare -15x-50

Asked by thabitha fernandez | 6th Dec, 2012, 08:01: PM

Expert Answer:

5X^2-15X-50
=5(X^2-3X-10)
=5(X^2-5X+2X-10)
=5(X(X-5)+2(X-5))
=5(X+2)(X-5)

Answered by  | 7th Dec, 2012, 01:00: AM

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