There is a box with 6 marbles: 3 red, 1 blue, 1 green, and 1 yellow. What is the probability of picking yellow marble, keep it,
2 answers:
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To factor a number out of an expression means to divide each term of the expression by that number.
So, if you want to factor from the expression
, you'll write it as
So, in your case, when you divide both terms by -5 you get
So, the expression becomes