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Simplify (15+6)^2-(8-5)^2
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4 votes
Simplify (15+6)^2-(8-5)^2

User DoneForAiur
by
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2 Answers

5 votes


\huge\text{Hey there!}


\huge\boxed{\mathsf{(15 + 6)^2 - (8 - 5)^2}}\\\huge\boxed{\rightarrow\mathsf{ 21^2 - 3^2}}\\\\\\\huge\boxed{21*21}\\\huge\boxed{= \bf 441}\\\\\huge\boxed{3*3}\\\huge\boxed{= \bf \underline{\underline{9}}}\\\\\\\huge\boxed{\bold{441} - \underline{\underline{\bf 9}}}\\\huge\boxed{\boxed{= \bf \underline{4}32}}\\\\\\\\\huge\boxed{\textsf{Therefore, your answer is: 432}}\huge\checkmark\\\\\\\\\\\\\huge\text{Good luck on your assignment \& enjoy your day!}\\\\\\\frak{Amphitrite1040:)}

User Brandon Kohn
by
7.2k points
4 votes
Use "PEMDAS" (Parentheses, Exponents, Multiplication, Division, Addition, Subtraction) to know what to do first.

(15 + 6)^{2} - (8 - 5)^{2} Solve the insides of the parentheses
21^{2} - 3^{2} Solve the exponents (21 x 21) and (3 x 3)
441 - 9 Subtract
432

User Otieno Rowland
by
9.5k points
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