Question 201384
we  believe  the  numerator  of  second  multiplier  should  be (21)  not (2)
Please  confirm
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{ (x^2 +x-2) / (x^2 -7x) } * { (5x^2 -38x +21) / (x^2 +2x) }
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factor
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{ (x-1)(x+2)/ (x)(x-7)} * { (5x-3)(x-7) / x(x+2) }
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simply  by  canceling  opposing  like  terms
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{ (x-1)(5x-3) } / x^2
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check  by  allowing  x=1,,both  original  and  answer  are  zero
try  allowing  x=2,, both  are  1.75,,,,ok