Question

-------Claculati, utilizand fomulele de calcul prescurtat-------

a) (1+x) la puterea 2 + (2+x) la puterea 2 + (3+x) la puterea 2
b) (2x + 3y) la puterea 2 + (2x + 3y) (2x - 3y)
c) (2x + 3y) la puterea 2 + 4x(3x - 2) + (2x - 1) la puterea 2
d) (3a + 2b) la puterea 2 + (2a +b) (2a - b) - (3a - b) la puterea 2
e) (2-3x) la puterea 2 + (2+3x) la puterea 2 - (2x-3) la puterea 2 (4x+3) (4x-3)
f) (2x la 2 + y) la puterea 2 - (2x la 2 - y) la puterea 2 + (x+y) (x-y)

Answer 1

Răspuns:

Explicație pas cu pas: