Question

9. Scoateti factorul comun: a) 7x(x + 2) + (x + 2)2 - 3(x + 2); b) (y + 3)(y + 2) + 4(y + 3)? - 4(+ 3); c) (y + 5)(3y - 7) - (y + 5)(4y - 2) + 30+5); d) (3x - 5)2-3x - 5)(2x - 1) + 6( 3x - 5); e) (5x - 4)(3x - 2)2-(3x - 2)2 + 2(x + 4)(3x - 2); 1 (4y - 5z)(2y + 2) - (3y - 2)(5:- 4y) + (5z - 4y)​

Answer 1

Răspuns:

a)(x+2)(7x+2-3)

(x+2)(7x-1)

b)(y+3)(y+2+4-4)

(y+3)(y+2)

d)(3x-5)(2-2x+1+6)

(3x-5)(-2x+8)

e)(3x-2)×(2(5x-4)-2+2x+8)

(3x-2)(12x-2)

c si f scrie încă o dată si am sa scriu raspunsul in comentarii