SOLUTION: can you simplify this for me, step by step?: {{{ [(7n-8m)^2]+[(7n+8m)^2] }}} i have tried using the algebraic identities. {{{ [49n-112nm+64m]+[49n+112nm+64 ]}}} {{{ 98+128 }}

Algebra ->  College  -> Linear Algebra -> SOLUTION: can you simplify this for me, step by step?: {{{ [(7n-8m)^2]+[(7n+8m)^2] }}} i have tried using the algebraic identities. {{{ [49n-112nm+64m]+[49n+112nm+64 ]}}} {{{ 98+128 }}      Log On


   



Question 523633: can you simplify this for me, step by step?: +%5B%287n-8m%29%5E2%5D%2B%5B%287n%2B8m%29%5E2%5D+
i have tried using the algebraic identities.
+%5B49n-112nm%2B64m%5D%2B%5B49n%2B112nm%2B64+%5D
+98%2B128+
is this correct? I have learned this before but i totally forgot it.

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
can you simplify this for me, step by step?: +%287n-8m%29%5E2+%2B+%287n%2B8m%29%5E2+
= 49n%5E2+-+112mn+%2B+64m%5E2+%2B+49n%5E2+%2B+112mn+%2B+64m%5E2
= 98n%5E2+%2B+128m%5E2
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Is the the same problem?
i have tried using the algebraic identities.
+49n-112nm%2B64m%2B49n%2B112nm%2B64
= +98n+%2B+128+