7. Simplify:
answer: (i)14 (ii) 2 (iii)30 (iv)√10-√15-2+√6 (v)8-2√15 (vi)12-6√3
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Answer:
i)4+√2×4-√2
=16-4√2+4√2-2
=16-2=14
ii) √5+√3×√5-√3
=(√5-√3)^2
=5-3=2
iii)6-√6×6+√6
36+6√6-6√6-6
=36-6=30
iv) √5-√2×√2-√3
√10-√15-2√6
v) (√5-√3)^2
=√5+√3×√5-√3
= 5-√15-√15+3
=8-2√15
hope it helps you
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