How do you simplify $(3 + k) (- 4) - 5 k$ $(3+k)(-4)-5k$ ?

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Answer 1 · 2016-04-24T07:41:45

$= - 12 - 9 k$ $= -12 - 9k$

$(3 + k) (- 4) - 5 k$ $(3 + k ) color(green)(( -4)) - 5k$

$= (3) \cdot (- 4) + (k) \cdot (- 4) - 5 k$ $= (3) * color(green)((-4)) + (k ) * color(green)(( -4)) - 5k$

$= - 12 - 4 k - 5 k$ $= -12 - 4k - 5k$

Grouping like terms:

$= - 12 + (- 4 k - 5 k)$ $= -12 + (- 4k - 5k )$

$= - 12 - 9 k$ $= -12 - 9k$

How do you simplify (3+k)(−4)−5k(3+k)(-4)-5k?