\(-\left(x+2\right)+3\left(x^2-4\right)\)
\(=3\left(x-2\right)\left(x+2\right)-\left(x+2\right)\)
\(=\left(x+2\right)\left[3\left(x-2\right)-1\right]=\left(x+2\right)\left(3x-7\right)\)
x3 + x2 + 4
PTĐTTNT
PTĐTTNT
x3 - x2 - 4
PTĐTTNT
x^4-3x^3-6x^2+3x+1
PTĐTTNT:
a) x^3+4x^2-29x+24
b) x^6+3x^5+4x^4+4x^3+4x^2+3x+1
c)x^12+1
PTĐTTNT : x^3 - x^2 - 7x + 15
PTĐTTNT:
\(x^4+4x^3+5x^2+7x+3\)
1)x3+8x2+17x+10
2) 2x3-3x2+3x-1
3) x4+x2+1
4) 81x4+4
m.n giúp mik với, tks( PTĐTTNT)
1) 2x2+8x+7
2)2x2-5x-12
3)4x3-2x-4
4)x4+x+1
5)x7+x+1
m.n giúp mjk vs ạ, thanks( PTĐTTNT)
PTĐTTNT
\(\left(x^2+3x-4\right)\left(x^2+x-6\right)-24\)
