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3 years ago

Simplify: ( ++)2 + ( −+)2 + ( +−)2

Mathematics

1 answer:

cestrela7 [59]3 years ago

4 0

Answer:

$-2$

Step-by-step explanation:

$( ++)2 + ( -+)2 + ( +-)2$

$++ = +$

$-+ = -$

$+- = -$

$( +)2 + ( -)2 + ( -)2$

$2-2-2$

$=-2$

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Step-by-step explanation:

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Sphinxa [80]

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Step-by-step explanation:

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