Help me.Help me.Help me.

Question

Help me.Help me.Help me.

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Answer 1

(2a-1)(4a²+2a+1)= 2a³ - 1³=8a³-1
2x(-1/2)³-1=2x(-1/8)-1=-2/8-1= -1 2/8= -1 1/4

Comments

Что значит / ?