Question

x(x+4)(x la puterea a 2a +4x+5)+8

Answer 1

introduci x in prima paranteza

(x²+4x)(x²+4x+5)+8

notezi x²+4x cu y si inlocuiesti

y(y+5)+8=

=y²+5y+8

(x²+4x)²+5x²+20x+8

x la a patra+16x²+5x²+20x+8

x la puterea a patra +21x²+20x+8

x(x³+21x+20)+8

ma cam doare capul, sa imi zici daca am gresit undeva.