How do you combine $(a b - 9) - (6 a b + 8)$ $(ab - 9) - (6ab + 8)$ ?

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Answer 1 · 2015-05-05T06:54:17

$(a b - 9) - (6 a b + 8) = a b - 9 - 6 a b - 8$ $(ab - 9) - (6ab + 8) = ab - 9 - 6ab - 8$

We can Group Like Terms to simplify this expression

$= (a b - 6 a b) - (9 + 8)$ $= (ab - 6ab) -(9+8)$

$= - 5 a b - 17$ $= color(green)(-5ab - 17$

How do you combine (ab - 9) - (6ab + 8) (ab−9)−(6ab+8)(ab - 9) - (6ab + 8) ?