Question

calculati: a) x( x-2 ) + x( 3-x ) =
b) 3(1 - 2a) + 2(3a + 1) =
c) 3(a la puterea -2a -2) + a(6-3a) =

Answer 1

a) x(x-2)+x(3-x)= ²-2x+3x-x²=x

b) 3(1-2a)+2(3a+1)=3-6a+6a+2=5

c) 3(a²-2a-2)+a(6-3a)=3a²-6a-6+6a-3a²=-6