Question

Descompuneti in factori cu formule de calcul prescurtat :
(x-[tex] \frac{1}{2} ) ^{2} - ( \frac{1}{2}) ^{2}
[/tex]

Answer 1

$(x- \frac{1}{2}) ^{2} - (\frac{1}{2}) ^{2} = \\ \\ =[(x- \frac{1}{2})+ \frac{1}{2}][(x- \frac{1}{2})- \frac{1}{2}] = \\ \\ =x(x-1).$