Matematică
lauragrama74
2016-10-01 03:52:09
19+19×[125+7×(12+15×3)-28×2]-100×10 dau coroana
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mariadavidescde
2016-10-01 08:58:08

19+19x[125+7x(12+15x3)-28x2]-100x10= 19+19x[125+7x(12+45)-56]-1000= 19+19x(125+7x57-56)-1000= 19+19x(125+399-56)-1000= 19+19x(524-56)-1000= 19+19x468-1000= 19+8892-1000= 8911-1000= 7911

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