Question

Simplifique as expressões
a) (x+a)(x-3)+2=
b) (x+3)(x+4)-2(x+1)
c) 3x(x-1)+(x+2)(x+5)

se poder explicar agradeço

Answer 1

a) x²-3x+ax-3a+2
b) x²+4x+3x+12-2x-1
    x²+5x+11
c)3x²-3x+x²+5x+2x+10
   4x²+4x+10