Question

1. EFECTUATI:
a) (x-2) (x+2) (x²+4) (x la a 4-a +16)
b) (x+3)(x-3)+(x+3)²-(x√2-1)²

Answer 1

a)=(x²-4)(x²+4)(x^4+16)
=(x^4-16)(x^4+16)
=x^8-256

b)=x²-9+x²+6x+9-(2x²-2√2x+1)
=2x²+6x-2x²+2√2x-1
=6x+2√2x-1
=2x(3+√2)-1