Question

${3}^{3 } + {3}^{10} \div {3}^{8} \times 3 + 3 \times {3}^{7 } \div {3}^{5} + 2 \times {3}^{10} \div (5 \times {3}^{5} + {3}^{5} ) + 9 \times {3}^{3}$
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Answer 1

=3³+3³+3³+2×3¹⁰:(6×3⁵)+9×3³=12×3³+3⁵/3=4×3×3³+3⁴=4×3⁴+3⁴=(4+1)×3⁴=5×81=405