Question

A) 6²÷(2³+1)×(3²-5)= B) (7×3²-1)÷(8²-2×31)= C) 3*(4²-[5*2³+7*(9²-80)]]

Answer 1

$a) {6}^{2} \div ( {2}^{3} + 1) \times ( {3}^{2} - 5) = \\ 36 \div (8 + 1) \times ( 9 - 5) = \\ 36 \div 9 \times 4 \\ 4 \times 4 \\ 16$

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