(7)³+(-15)²×(-49)÷(7)
= 343+15²×(-49)×7
= 343+15²×7
= 343-7×15²
= 343-7×225
= 343-1575
= -1232
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Verified answer
(7)³+(-15)²×(-49)÷(7)
= 343+15²×(-49)×7
= 343+15²×7
= 343-7×15²
= 343-7×225
= 343-1575
= -1232