how do you solve this?
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dolypahi:
It's the formula (a+b)^2
no because if he squares on side then he has to square the other side too
minus sign became plus becacuse √(x²) = +-x
ok
on taking it - x you will get the answer
or simply take modulus
rationalising can be also done in two ways
Yeah modulus
On the last step how did u get -root over 5
Sorry +root over 5
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