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√4a³+√144a = ??
3√7×6√12+4√21 =??
√4a³+√144a = ??
3√7×6√12+4√21 =??
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3√7×6√12+4√21 = 18√84 + 4√21 = 18√4.21 + 4√21 = 18.2√21+ 4√21 = 40√21
= (12 + 2a)√a
3√7 x 6√12 + 4√21
= 3√7 x 6√(4 x 3) + 4√21
= 3√7 x 12√3 + 4√21
= 36√21 + 4√21
= 40√21