Which expression has a value that is equivalent to the given expression when n = 8? 2n + 10 3n 2(n + 5) n² + 5 10n + 2
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Given,
n = 8
===> 2n + 10 × 3n × 2 ( n + 5 ) × n2 + 5 × 10n + 2
===> 2 (8) + 10 × 3 (8) × 2(8 + 5) × (8)2 + 5 × 10
(8) + 2
===> 16 + 10 × 18 × 2(13) × 8 × 8 + 5 × 80 +2
===> 【 26 × 18 × 26 × 64 】+ [ 5 × 80] + 2
===> 【 134 】 + [ 400 ] + 2
Remove brackets
===> 134 + 400 + 2
===> 536 .
n = 8
===> 2n + 10 × 3n × 2 ( n + 5 ) × n2 + 5 × 10n + 2
===> 2 (8) + 10 × 3 (8) × 2(8 + 5) × (8)2 + 5 × 10
(8) + 2
===> 16 + 10 × 18 × 2(13) × 8 × 8 + 5 × 80 +2
===> 【 26 × 18 × 26 × 64 】+ [ 5 × 80] + 2
===> 【 134 】 + [ 400 ] + 2
Remove brackets
===> 134 + 400 + 2
===> 536 .
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