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.

$24x^2 + 46x + 20$

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