factor a^2(y-3) + a(3-7) + 7(y-3)?
someone please show me how to factor completely
Update:I goofed - rushing gets ya no where kids...
*************************a^2(y-3) + a(3-y) + 7(y-3) *********************************
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Verified answer
Adjust the signs of the middle term:
a^2(y-3) - a(y-3) + 7(y-3)
Factor out the common factor:
(y - 3) (a^2 - a + 7)
The quadratic remaining in parentheses doesn't factor any farther in real or rational numbers, so presumably you're finished.