Hii!
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2k(1+5a) <em>or </em>2k(5a+1)
First of all, let's find the common term of this binomial (an expression with two terms; the prefix bi- means "two")
Note that both terms have 2k in them. So, we factor it out.
<em>Simplify</em>
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<em>2k can't just vanish into thin air, so we put it outside the parentheses:</em>
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<em>Great job! We factored the expression successfully</em>
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<em>--</em>
Hope that this helped! Best wishes.
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