\(\left(1.25\right)^8.8^{17}.\left(1.25\right)^8\)
\(=25^8.25^8.8^{17}\)
\(=25^{16}.8^{17}\)
\(=25^{16}.8^{16}.8\)
\(=\left(25.8\right)^{16}+8\)
\(=200^{16}.8\)
Đến đây tự làm nhé
Chúc bạn học tốt
Tính:
\(M=\frac{\left(1+17\right)\left(1+\frac{17}{2}\right)\left(1+\frac{17}{3}\right)........\left(1+\frac{17}{19}\right)}{\left(1+19\right)\left(1+\frac{19}{2}\right)\left(1+\frac{19}{3}\right)........\left(1+\frac{19}{17}\right)}\)
\(703-140:\left(38+2^5\right)-17^6.17^9:17^{13}.\)
\(1024:2^5+140:\left(38+2^5\right)+23^2-7^{23}:7^{21}.\)
\(\left(13.17^4+4.17^4\right):17^3-\left(14.9-14.5\right):8.\)
Nhanh nhé !! Cần gấp lắm ạ !
Tìm GTLN hoặc GTNN của :
a) \(A=\left|-x+8\right|-21\)
b) \(B=\left|-x-17\right|+\left|y-36\right|+12\)
c) \(C=-\left|2x-8\right|-35\)
d) \(D=3\left(3x-12\right)^2-37\)
e) \(E=-21-3\left|2x+50\right|\)
g) \(G=\left(x-3\right)^2+\left|x^2-9\right|+25\)
Rút gọn biểu thức \(Q=\frac{\left(17\frac{8}{19}-16\frac{9}{18}\right)\left(17,5+16\frac{17}{51}+32\frac{15}{22}\right)}{\frac{7}{3\cdot13}+\frac{7}{13\cdot23}+\frac{7}{23\cdot33}}\) rồi tính 20% của Q ta đc bao nhiêu?
\(\dfrac{\left(17\dfrac{8}{19}-16\dfrac{9}{18}\right).\left(17,5+16\dfrac{17}{51}-32\dfrac{15}{22}\right)}{\dfrac{7}{3.13}+\dfrac{7}{13.23}+\dfrac{7}{23.33}}\)
Tìm x :
\(\frac{3}{\left(x+2\right).\left(x+5\right)}+\frac{5}{\left(x+5\right).\left(x+10\right)}+\frac{7}{\left(x+10\right).\left(x+17\right)}=\frac{x}{\left(xx+2\right).\left(x+17\right)}\)
Giúp mk với 
tìm x biết :
a) \(\left(x+\frac{1}{2}\right).\left(\frac{2}{3}-2x\right)=0\)
b) \(\left(x.6\frac{2}{7}+\frac{3}{7}\right).2\frac{1}{5}-\frac{3}{7}=-2\)
c) \(x.3\frac{1}{4}+\left(-\frac{7}{6}\right).x-1\frac{2}{3}=\frac{5}{12}\)
d) \(5\frac{8}{17}:x+\left(-\frac{4}{17}\right):x+3\frac{1}{7}:17\frac{1}{3}=\frac{4}{11}\)
e) \(\frac{17}{2}-\left|2x-\frac{3}{4}\right|=-\frac{7}{4}\)
tìm x:
a)\(\left(x+\dfrac{1}{2}\right).\left(\dfrac{2}{3}-2x\right)=0\)
b) \(\left(x.6\dfrac{2}{7}+\dfrac{3}{7}\right).2\dfrac{1}{5}-\dfrac{3}{7}=-2\)
c) \(x.3\dfrac{1}{4}+\left(\dfrac{-7}{6}\right).x-1\dfrac{2}{3}=\dfrac{5}{12}\)
d) \(5\dfrac{8}{17}:x+\left(-\dfrac{4}{17}\right):x+3\dfrac{1}{7}:17\dfrac{1}{3}=\dfrac{4}{11}\)
Bài 3: Thực hiện phép tính một cách hợp lý:
m) \(\left(\frac{-5}{12}+\frac{6}{11}\right)+\left(\frac{7}{17}+\frac{5}{11}+\frac{5}{12}\right)\) n) \(\left(\frac{9}{16}+\frac{8}{-27}\right)+\left(1+\frac{7}{16}+\frac{-19}{27}\right)\) o) \(\left(6-2\frac{4}{5}\right).3\frac{1}{8}-1\frac{3}{5}:\frac{1}{4}\)