giai dum mih bai nay nhen
cho S=1+x+x2+x3+x4+x5
C/m:x*S-S=x6-1
phan tich da thuc thanh nhan tu
\(\left(x+2\right)\left(x+3\right)\left(x+4\right)\left(x+5\right)-24\)
ban nao giai ho mk bai nay voi
mk se tik cho
a) (x-1/2).(1+5x)=0
b) |2x-1|=|x+2|
c) 2.3^x.3^2=18(xeN)
d) x+2/5=2-3x/3
e) 7x=3y va x-y=32
giAI GIUP MINH MAY BAI NAY
giai chi tiet giup minh may bai nay nha
1 gia tri x>0 thoa man
(2x-3)2=(x+5)2
2 gia tri lon nhat cua -3x2-6x-4
3 tim gia tri cua x+y biet
x-y=2 ; x*y=99 va y <0
4 nghiem cua phuong trinh
(2x-3)2-4x2-297=0
giải phương trình (b-c)(1+a)^2/(x+a^2) + (c-a)(1+b)^2/(x+b^2) + (a-b)(1+c)^2/(x+c^2) =0
giup mk giai bai nay nha
tinh gia tri bieu thuc sau :(x-4)^(x-5)^(x-6)^(x+5)^(x+6)
giup mik giai bai nay voi
\(2x-\frac{4-3x}{\frac{5}{15}}=7x-\frac{x-3}{\frac{2}{5}}-x+1\)
\(\frac{5x-1}{10}+\frac{2x+3}{6}=\frac{x-8}{15}-\frac{x}{30}\)
giai ho minh 2 bai nay nha
nhanh mik tk
Tim x, biet
x^3+6x^2+9x-x^4=0
giup minh giai bai toan nay nhe , minh like cho
Giup mk not bai nay , dang gap !
Thuc hien phep tinh:
a, (x -2) ^3 -x(x+1)(x-1) + 6x(x -3)
b, (x-2)(x^2 - 2x +4)(x+2)(x^2 +2x + 4)
Thanks moi ng nha !