factories the expression 10ab+5a+2b+1
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Step-by-step explanation:
10ab+5a+2b+1
5a(2b+1)+1(2b+1)
(5a+1)(2b+1)
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Step-by-step explanation:
10ab+5a+2b+1= 10ab+2b+5a+1 = (10ab+2b)+(5a+1)= 2b(5a+1)+1(5a+1)= (2b+1)(5a+1)
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