Question

Dezvoltati fiecare produs, utilizind formulele de calcul prescurtat a) (x+2)²= b) (x-1)²= c) (3x+2)²= d) (2x-1)²= e) (2x-1) (2x+1)= VA ROG URGENT

Answer 1

a)(x+2)²=x²+4x+4

b)(x-1)²=x²-2x+1

c)(3x+2)²=9x²+12x+4

d)(2x-1)²=4x²-4x+1

e)(2x-1)(2x+1)=4x²-1