What is 3√20-4√45+2√245
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3√20-4√45+2√245=
3√(4*5) - 4√(9*5)+2√(49*5)
{√4=2; √9 = 3; √49 =7}
(2*3)√5 - (4*3)√5 + (2*7)√5
TAKING √5 COMMON
√5[6 - 12 +14]
√5[ 20 - 12 ]
ANS = 8√5
3√(4*5) - 4√(9*5)+2√(49*5)
{√4=2; √9 = 3; √49 =7}
(2*3)√5 - (4*3)√5 + (2*7)√5
TAKING √5 COMMON
√5[6 - 12 +14]
√5[ 20 - 12 ]
ANS = 8√5
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