Scrieți ca produs următoarele expresii: a) x(x + 4) + 3(x + 4); b) 2x(x+√3)-5(x + √3); c) (x+6)(x-3) + (x + 6)(x + 5). Pent
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Răspuns:
a) x(x+4) +3(x+4) = (x+4)(x+3)
b) 2x(x+√3)-5(x+√3) = (x+√3)(2x-5)
c) (x+6)(x-3)+(x+6)(x+5) = (x+6)(x-3+x+5)
= (x+6)(2x+2)
Explicație pas cu pas:
Dai factor comun parantezele