Rationalise the denominator of 22/2+root 3+root 5
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22/2+(√3+√5)*2-(√3+√5)/2-(√3+√5)
=22[2-(√3+√5)]/2^2-(√3+√5)^2
=44-22√3+22√5÷4-[√3^2+2*√3*√5+√5^2]
=44-22√15/4(3+2√15+5)
=44-22√15/32+8√15
2(22-11√15)/2(16+4√15)
22-11√15/16+4√15
=22[2-(√3+√5)]/2^2-(√3+√5)^2
=44-22√3+22√5÷4-[√3^2+2*√3*√5+√5^2]
=44-22√15/4(3+2√15+5)
=44-22√15/32+8√15
2(22-11√15)/2(16+4√15)
22-11√15/16+4√15
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