Question

calculati
(3x+1)(4x-5)-(6x-11)(2x+5)

Answer 1

(3x+1)(4x-5)-(6x-11)(2x+5)=
= $(12 x^{2} -15x +4x - 5) - (12 x^{2} + 30x - 22x -55)$
= $12 x^{2} - 15 x + 4x -5 - 12 x^{2} + 30x -22x -55$
apoi reduci termeni asemenea si calculezi