4 + 16 ÷ 2 × 3 = ?
= 4 + 8 × 3
= 4 + 24
= 28
(3√2 + 2√18) / √2 = ?
= (3√2 + 2·3√2) / √2
= (3√2 + 6√2) / √2
= 9√2 / √2
= 9
(−10)² − (−6)² − (−14²) + 25 ÷ ²⁄ ₈ = ? (−10)² = (−10) × (−10) = 100 (−6)² = (−6) × (−6) = 36 −14² = −(14²) = ...
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