Answer:
(4√3+7√3)^2
=(4√3)^2+2×4√3×7√3+(7√3)^2
=(16×3)+2×4×7×3+(49×3)
=48+168+147
=363
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Answer:
(4√3+7√3)^2
=(4√3)^2+2×4√3×7√3+(7√3)^2
=(16×3)+2×4×7×3+(49×3)
=48+168+147
=363