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(x-2) la patrat+(x+5)(x-5)-(x+1)
cat de rpd posibil va rog


Răspuns :

x²-4x+4 + x²-25 -x-1 = 2x²-5x-22

Răspuns:

[tex].... = x {}^{2} - 4x + 4 + (x + 5)(x - 5) - (x + 1) = x {}^{2} - 4 - x + 4 + x {}^{2} - 25 - (x + 1) = x {}^{2} - 4x + 4 + x {}^{2} - 25 - x - 1 = 2x {}^{2} - 4x + 4 - 25 - x - 1 = 2x {}^{2} - 5x + 4 - 25 - 1 = 2x {}^{2} - 5x - 22 [/tex]