Question

Am nevoie urgent de raspuns la acest calcul...Va rog!
(3+2x)(9+4x)(2x-3)

Answer 1

$(3 + 2x)(9 + 4x)(2x - 3)$

$= (27 + 12x + 18x + {8x}^{2} )(2x - 3)$

$= 54x - 81 + {24x}^{2} - 36x + {36x}^{2} - 54x + {16x}^{3} - 24 {x}^{2}$

$= {16x}^{3} + 36 {x}^{2} - 36x - 81$

Answer 2

[3(9+4x)+2x(9+4x)](2x-3)=

(27+12x+18x+8x²)(2x-3)=

27(2x-3)+30x(2x-3)+8x²(2x-3)=

54x-81+60x²-90x+16x³-24x²=

16x³+36x²-36x-81

Sper că te-am ajutat!