How do you multiply #(- 4x - 5) ( - 6x - 4)#?

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Answer 1 · 2018-03-22T19:43:01

#(-4x-5)(-6x-4)=color(blue)(24x^2 + 46x + 20#

Multiply (Expand):

#(-4x-5)(-6x-4)#

Use the FOIL method.

#(-4x-5)(-6x-4)=#

#(-4x*-6x) + (-4x*-4) + (-5*-6x) + (-5*-4)=#

#24x^2+16x+30x+20#

Collect like terms.

#24x^2 + (16x+30x) + 20#

Combine like terms.

#24x^2 + 46x + 20#