Question

Uzupełni:
(a+b)x² +(a +b) x² +(a + b) x =(a + b) x (.........
(x + 1) x² +( x + 1) (1 -x)² =(x +1)(.......
kto mi to rozwiąże ?? bo nie rozumie plis :(

Answer 1

(a+b)x² +(a +b) x² +(a + b) x =(a + b)x(x+x+1)=x(a+b)(2x+1)
chyba o to chodziło

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