Question

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 1

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