Apply Distributive Property: Apply the distributive property to expand the expression.We need to multiply 5 by each term inside the parentheses (1+2t).5(1+2t)=5×1+5×2t
Perform Multiplication: Perform the multiplication.Now we multiply 5 by 1 and 5 by 2t.5×1=55×2t=10tSo, 5(1+2t)=5+10t