Posted by joyce on Friday, July 23, 2010 at 8:54pm.
6q^2 40q  50 how do you solve this i am factoring and having problems

algebra  Kate, Friday, July 23, 2010 at 9:01pm
Use the quadratic formula
(40 +/ sqrt((40)^2  4(6)(50) ))/(2(6))
what ever that comes out to be

algebra  Henry, Saturday, July 24, 2010 at 8:22pm
6q^2  40q 50.
Factor using the AC method:
2(3q^2 + 20q + 25)
A*C = 3*25 = 75 = 5*15.
Replace 20q with 5q + 15q:
2(3q^2 +5q+15q + 25).
Group the 4 terms in pairs that can
be factored:
2(3q^2+15q + 5q+25).
Factor the 2 pairs:
2(3q(q+5) + 5(q+5).
Factor out q+5:
2((q + 5) (3q + 5)).
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