algebra

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-6q^2 -40q - 50 how do you solve this i am factoring and having problems

  • algebra -

    Use the quadratic formula

    (40 +/- sqrt((-40)^2 - 4(-6)(-50) ))/(2(-6))

    what ever that comes out to be

  • algebra -

    -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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