Question

a) V2+V2=
b) 2V5+3V5=
c) V3+(-V3)=
d) V5-V5=
e) 7V7-2V7=
f) V6-3V6=
g) V6+2V6+3V6

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Answer 1

$a) \sqrt{2} + \sqrt{2} = (1 + 1) \sqrt{2} = 2 \sqrt{2}$

$b)2 \sqrt{5} + 3 \sqrt{5} = (2 + 3) \sqrt{5} = 5 \sqrt{5}$

$c) \sqrt{3} + ( - \sqrt{3} ) = 0$

$d) \sqrt{5} - \sqrt{5} = 0$

$e)7 \sqrt{7} - 2 \sqrt{7} = (7 - 2) \sqrt{7} = 5 \sqrt{7}$

$f) \sqrt{6} - 3 \sqrt{6} = 1 \sqrt{6} - 3 \sqrt{6} = (1 - 3) \sqrt{6} = - 2 \sqrt{6}$

$g) \sqrt{6} + 2 \sqrt{6} + 3 \sqrt{6} = 1 \sqrt{6} + 2 \sqrt{6} + 3 \sqrt{6} = (1 + 2 + 3) \sqrt{6} = 6 \sqrt{6}$