3. Find the square of 203 using the Distributive Law. Write down the solution step.
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Step-by-step explanation:
(200+3)^2
=(a+b)^2
=a^2+b^2+2ab
=(200+3)^2
=(20)^2+(3)^2+2×20×3.
=40,000+9+120
=40,129
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