Question

Calculează, folosind formula (a -b) la a doua=a la a doua- 2 ab+b la a doua.a) (x-2) la a doua= ,b)(x-1) la a doua,c) (x-4) la a doua, d)(x-6) la a doua.

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Answer 1

Răspuns:

a) (x-2) la a 2 a= x la a doua- 4*x+4

b) (x-1) la a doua= x la a doua- 2x+1

c) (x-4) la a doua= x la a doua-8x+16

d) (x-6) la a doua= x la a doua -12x+36