Georgianageo181id
a fost răspuns

Decsompuneti in factori, aplicand formula:: a²-b²=(a+b)(a-b)

a)(x+√2)²-(2√2)²=
b)(x-√5)²-(3√5)²=
c)(2x+√3)²-12=

Va rog, ajutati-ma, am incercat sa rezolv si  nu imi da ca la sfarsit:
a)(x-√2)(x+3√2)
b)(x-4√5)(x+2√5)
c)2x-√3)(2x+3√3)
Va roog:)

Răspuns :

Miky93id
a)[(x+√2)-2√2][(x+√2)+2√2]= (x-√2)(x+3√2)

b)[(x-√5)-3√5][(x-√5)+3√5]=(x-4√5)(x+2√5)

c)√12=2√3
[(2x+√3)-2√3][(2x+√3)+2√3]=(2x-√3)(2x+3√3)


Izzdumitraid
DFHTRFHGfydghfg           gata,acum dai lu miky "raspunsul cel mai bun" :)

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