Предмет: Математика, автор: hokim90

3ab (4a*2-b*2)+4ab (b*2-3a*2) при a=10,b=-5

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Автор ответа: сухарик05
0
3ab(4a*2-b*2)+4ab(b*2-3a*2)=3ab(8a-2b)+4ab(2b-6a)=24a²b-6ab²+8ab²-
24a²b=-6ab²+8ab²=2ab²=2*10*(-5)²=20*25=500
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