X=8-root 60 find root x
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x=8+√60
=8+√4×15
=5+3+2√15
=(√5)²+2.√5.√3+(√3)²
=(√5+√3)²
∴, √x=√5+√3
=8+√4×15
=5+3+2√15
=(√5)²+2.√5.√3+(√3)²
=(√5+√3)²
∴, √x=√5+√3
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