Question

Evaluate : 21-[21-{21+(21-21+21)}] PLEASE HELP ​

Answer 1

Answer:

704=answer 12+12+12+12+12+12+

Answer 2

$\huge {\boxed{\mathbb {QUESTION}}}$

Evaluate : 21-[21-{21+(21-21+21)}]

$\huge {\boxed{\mathbb {ANSWER}}}$

$\implies 21-[21-[21+(21-21+21)]]$

$\implies 21-[21-[21+(21\:\cancel {-21+21})]]$

$\implies 21-[21-[21+(21)]]$

$\implies 21-[21-[21+21]]$

$\implies 21-[21-[42]$

$\implies 21-[21-42]$

$\implies 21-[-21]$

$\implies 21+21$

$\implies {\boxed {\boxed {42}}}$

$\huge {\boxed{\mathbb {HOPE \:IT \:HELPS \:YOU}}}$

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$Identities$

${(a+b)}^{2}={a}^{2}+2ab+{b}^{2}$

${(a-b)}^{2}={a}^{2}-2ab+{b}^{2}$

$(a+b) (a-b) ={a}^{2}-{b}^{2}$

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