knights64jih
knights64jih
06-11-2018
Mathematics
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r^2+6r-40 factor each expression
Respuesta :
Snuffs
Snuffs
06-11-2018
(r + 10)(r - 4)
To double check:
r * r is r^2
10 * r = 10r; -4 * r = -4r
Combine to get 6r.
-4 * 10 = -40
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