
Kenneth S. answered 01/18/18
Tutor
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Expert Help in Algebra/Trig/(Pre)calculus to Guarantee Success in 2018
You really did not ask a question. Probably you are expected to FACTOR the expression: = 4(10+x).
You can validate that this equals the original expression, by applying the distributive property to my answer.
[Factoring can be considered to be UN-Distributing, in such instances.]