a) -5 ( k² - 4k + 6 ).
Step-by-step explanation:
Given : −5k² + 20k − 30.
To find : Factor the GCF.
Solution :We have given that
−5k² + 20k − 30.
Taking common -5 from each term
-5 ( k² - 4k + 6 ).
Therefore, a) -5 ( k² - 4k + 6 ).
6mm^3 or .6cm^3
216
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36 6
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6 6 6
factor trees are nice.