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√128 − √98 + √18 = (a) √2 (b) √8 (c) √48 (d) √32

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√128 − √98 + √18 =

(a) √2
(b) √8
(c) √48
(d) √32

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1 Answer

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Best answer

(d) √32

√128 − √98 + √18

=8√2 − 7√2 + 3√2 

= 4√2

= √32

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