tìm x, biết:
1,6 - |x - 0,2| = 0
|x + 4/15| - | - 3,75| = - | - 2,15|
2|3x - 1| + 1 = 5
help me please, đang gấp! thanks!!
19/5:2x=1/4:8/3
Help me, please
TÌM X, BIẾT:
a) 3 . ( 1/2 - x ) + 1/3 = 7/6 - x
b) 4 . ( 1/2 - x ) - 5 . ( x - 3/10 ) = 7/4
c) -3/2 . ( 4/5 - 2/3 ) + x = 4 . ( x - 1/2 )
d) 2 . ( 3/2 - x ) - 1/3 = 7x - 1/4
e) 1/5 . ( -3/5 -10 ) + 5x = x - 2/3
f) -3/2 . ( 5 - 1/6 ) + 4 . ( x - 1/2 ) = 1
~ PLEASE HELP ME ~
1.
A= 2.8^4.27^2+4.9^9/2^7.6^7+2^7.40.9^4
B= (2/3)^3 . (-3/4)^2.(-1)^5/(22/5)^2.(-5/12)^3
2. Tìm số tự nhiên x, biết:
a, 4^x+4^x+3= 4160
b, 2^x-1+5.2^x-2=7/32
Please!!!Please!!!Please!!!Please!!!Please!!!Please!!!Please!!!Please!!!Please!!!Please!!!Please!!!Please!!!Please!!!Please!!!
tính:
a.(-2/3+3/7) : 4/5 + (-1/3+4/7) : 4/5
b. 5/9 : (1/11-5/22) + 5/9 : (1/15 - 2/3)
Help Me, Please !
Tìm nghiệm của đa thức sau:
a) (3x-2)-(5x+3)=(x+4)-(x-1)
b) 2x^2+9x=5
HELP ME, PLEASE
x/y=2/3;t/y=4/9;z/t=5/8.Hãy tìm tỉ số x/z
help me,please!=(((
1)tính hợp lí :
a/1/5-(1/2+3/4):5/2
b/1,5.(1/3-2/3)
c/9/10.23/11-1/11.9/10+9/10
f (x)= 3x^-2x^2+x^3+5
G(x)= x^3-x+3x^4+5-x
1) sắp xếp các đa thức theo lũy thừa giảm dần của biến.
2)Tính A(x)-B(x)
3)Tính A(x)+B(x)
Please help me!!!!!
