Question

Desfaceti parantezele.
a) (2a-√3)(a²+3a-√3); b) (a-b)(a²+ab+b²);
c) (b-2b²+1)(1-b); d) (x²+2xy+y²)(x-y)

Answer 1

a) (2a-√3)(a²+3a-√3); b) (a-b)(a²+ab+b²);c) (b-2b²+1)(1-b); d) (x²+2xy+y²)(x-y)   a=28 la 3 b=a2+ab+b2