SOLUTION: 5[5a-a(3x+5)+x(a+2x)]-10x^2 remove all grouping sybols and combine like terms

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Question 67553: 5[5a-a(3x+5)+x(a+2x)]-10x^2 remove all grouping sybols and combine like terms
Answer by checkley71(8403) About Me  (Show Source):
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5[5a-a(3x+5)+x(a+2x)]-10x^2
5[5a-3ax-5a+ax+2x^2]-10x^2
25a-15ax-25a+5ax+10x^2-10x^2
-15ax+5ax
-10ax