Question

descompuneti in factori ,aplicand formula a patrat - b patrat=(a+b)(a-b):a) ( x - 1/2)la patrat -(1/2)patrat, b) ( 2x + 1/3)patrat -(1/3) patrat c) (3/4-x) patrat -1/16= semnul ăsta / înseamnă supra,sub va mtumesc dau 38
puncte vă mulțumesc!!!!!!! + CORONIȚĂ!!

Answer 1

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

(2x + 1/3)² - (1/3)² = (2x + 1/3 + 1/3)(2x + 1/3 - 1/3) = 2x (2x + 2/3) 

(3/4 - x)² - 1/16 = (3/4 - x + 1/4)(3/4 - x - 1/4) = (1 - x)(2/4 - x ) 

Answer 2

a) (x-1/2)^2-(1/2)^2=(x-1/2+1/2)(x-1/2-1/2)=x(x-1)
b) (2x+1/3)^2-(1/3)^2= (2x+1/3+1/3)(2x+1/3-1/3)=(2x+2/3)2x
c) (3/4-x)^2-1/16=(3/4-x+1/4)(3/4-x-1/4)=(1-x)(1/2-x)