1) 2a(a-3) - (a+4)- 4(3a-5) 2) -5x(2-x) - 3(x+1)+2(6x-2)+7

Question

1) 2a(a-3) - (a+4)- 4(3a-5) 2) -5x(2-x) - 3(x+1)+2(6x-2)+7

Comments

3) 3(a-2b) - 4ab - (2a-b) при a=2, b= -1

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24

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a^2/3 - 3a^3/2 -3 при a= -2

Answer 1

Ответ:

Объяснение:

1)2а^2-6а-а-4-12а+20=2а^ 2-19а+16

2)-10x+5x-3x-3+12x-4+7=4x