Question

calculați, vă rog mult, am nevoie urgent ​

Answer 1

b) (x²+x)(x²+x+2)+1 = (x²+x)²+2(x²+x)+1 = (x²+x+1)²

c) (x²-x)(x²-x-6)+9 = (x²-x)²-6(x²-x)+9 = (x²-x-3)²