( x + 5 ) ( x + 3 ) > 0
( x + 6 ) ( x - 5 ) <0
( 2x - 6 ) ( x + 5 ) < 0
(-0, 1) +0, 2+(-0, 3) +0, 4 - 0, 5+0, 6-0, 7 -(-0, 8)
4^0+5^0+6^0+......+3854^0+3855^0
X + 5 . 2 - ( 32 + 16 . 3 : 6 - 15 ) = 0
X - 6 : 2 - ( 48 - 24 ) : 2 :6 - 3 = 0
1,x=3x2
2,(x+5)(x-3)-(x-30)=0
3,(2x-6)(x+4)+2(2x-6)=0
4,(2x-5)(x+9)+6x-15=0
3,(2x-5)(x+6)+8x-20=0
tìm hai số tự nhiên a,b sao cho a3b chia hết cho 2,3,5,9
A.a=b=0
B.a=6,b=5
C.a=3, b=0
D.a=6, b=0
Tìm x :
a/ ( x + 6 )4 - ( x + 6 )6 = 0
b/ | x + 3 | . ( x - 7 ) < 0
Tìm x :
a/ ( x + 6 )4 - ( x + 6 )6 = 0
b/ | x + 3 | . ( x - 7 ) < 0
x(x+1)<0
(x-6)(x+4)<0
(x+6)(2x+4)>0
(x^2+1)(x-9)>0
(x^2-7)(x^2-12)<0
(x^2-9)(x^2-4)<0
0×0+4-6=?
5+6+1-23=?
Giúp mình nha , ai nhanh cho k