Question

3a(a+b)kwadrat- (b+1) dla a+2 i b= -3

Answer 1

3*2(2+(-3))kwadrat -(-3+1)=

3*2(4+9)+3-1=

3*8+18+3-1=

24+18+3-1=

44

Answer 2

3a(a kwadrat+ 2ab+ b kwadrat)- (b+1)

3 raz 2( 4+2*2*(-3)+ (-3) kwadrat -[(-3)+1] 

6(4-12+9)+ 9-3-1

24-72+54+9-4=11