Nguyễn Ngọc Sáng chắc lâu lm đấy , thôi thì bn chọn đỗ phương linh đi ^^
Nguyễn Ngọc Sáng chắc lâu lm đấy , thôi thì bn chọn đỗ phương linh đi ^^
Tìm x biết:
\(a,\left(x-\dfrac{3}{4}\right)+50\%=\dfrac{1}{6}\)
\(b,\dfrac{1}{2}x-\dfrac{5}{6}x=\dfrac{7}{2}\)
\(c,\left(4-x\right)\left(3x+5\right)=0\)
\(d,\dfrac{x}{16}=\dfrac{50}{32}\)
\(e,\left(2x-3\right)+\dfrac{3}{2}=-\dfrac{1}{4}\)
Tìm x, biết : \(\left[\frac{45\frac{10}{63}-44\frac{25}{84}}{\left(2\frac{1}{3}-1\frac{1}{9}\right):4-\frac{3}{4}}:31\right].x=-\frac{1}{16}\)
2. tìm x
a) \(\left(x-1\right)^3=8\)
b) \(7^{2x-6}=49\)
c) \(\left(2x-14\right)^7=128\)
d) \(x^4.x^5=5^3.5^6\)
e) \(\left[3.\left(x+2\right):7\right].4=120\)
bài 1: tìm số nguyên x, biết
a) \(\left(25-2x\right)^3\): 5 - \(3^2\)= \(4^2\) b) 2 x \(3^x\)= \(10\) x \(3^{12}\) + 8 x \(27^4\)
\(8^{2x+1}=2^{27}:4^6\)
\(x^{10}=x\)
\(\left(3x-1\right)^3=25\left(3x-1\right)\)
Tìm x nếu
\(a,3^4:3^x=27\)
\(b,4^x.\frac{1}{3}+4^x.3=\frac{5}{3}.2^7\)
\(c,2^x.\frac{1}{4}+2.2^x=9.2^6\)
\(d,\left(8x-1\right)^{2x+1}=7^{2x+1}\)
1)Tìm x biết :
a) \(\left(2x+1\right)^3=125\); b)\(\left(4x-1\right)^2=25.9\);c)\(2^x+2^x+3=144\);d)\(3^{2x+2}=9^{x+3}\);e)\(x^{15}=x^2\)
Thực hiện phép tính:
a)\(\left(3.4.2^{16}\right)^2:\left(11.2^{13}.4^{11}-16^9\right)\)
b)1+2-3-4+5+6-7-8+............-299-300+301+302
Tìm x
a)\(\left(3x-1\right)^3=25.\left(3x-1\right)\)
b)\(3^{2x+2}=9^{x+3}\)
c)\(8^{2x+1}=2^{27}:4^6\)
d)\(2.3^x=10.3^{12}+8.27^4\)
e)\(\left(3x-14\right)^3=2^5+5^2+200\)
Tìm x:
\(3.\left(2x-6\right)-4.\left(1+2x\right)-2.\left(x-4\right)=4-3\left(1+2x\right)-5.\left(1-2x\right)\)
Ai nhanh mk tick cho . Mk cảm ơn bạn nhiều .