2.8392222e+17
Step-by-step explanation:
283838383838382828 + 83838383888282=2.8392222e+17
This should be recognized as the difference of perfect squares which is of the form:
(a^2-b^2) and the difference of squares always factors to:
(a-b)(a+b) in this case:
(3x-8)(3x+8)
16 nickles
10 dimes
1.00$ + 0.80$