\(3\left(4-x\right)-5\left(2-2x\right)=4.3^2-16.2^2\)
\(12-3x-10+10x=2^2.3^2-2^4.2^2\)
\(2+7x=-28\)
\(7x=-30\)
\(x=\frac{-30}{7}\)
c) \(\dfrac{\left(2^4.3^5\right)^3.49^{15}-31.6^{12}.9.\left(7^7\right)^4}{2^{11}.21^{14}.343^5+\left(2^4.3^5.7^{10}\right)^3}\)
giúp minh với các bạn ơi. huhu ai đúng mình tích cho nhé
1.tính hợp lí nếu có thể
120-\(^{\left\{300:\left[40-\left(2.562-262.5\right)\right]+10\right\}}\)
263.3-(1610+15):462
6^2:4.3+2.562-201
2. tìm x
(x-140):5=3^3-2^3.3
[(5x+2):7-6].17=340
5+3^x=2.(4^2-3^2)
nhanh mik tick cho
\(\frac{9^2.8^6}{16^4.3^{13}}+\frac{\left(3^2\right)^2.\left(2^3\right)^6}{\left(2^4\right)^4.3^{13}}=?\)
Tính B=\(\frac{\left(\frac{2}{3}\right)^3.\left(\frac{-3}{4}\right)^2.\left(-1\right)^5}{\left(\frac{2}{5}\right)^2.\left(\frac{5}{12}\right)^2}-\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\)
giúp mình giải chi tiết nha các bạn mai mình phải nộp rồi
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) \(\left[3.\left(x+2\right):7\right].4=120\)
Tìm số tự nhiên x , biết
\(2\cdot\left(x-1\right)^2=8\)
\(\left(2x+1\right)^3=125\)
\(\left(x-2\right)^5=243\)
\(5\left(x-4\right)^2-7=13\)
\(221-\left(3x+2\right)^3=96\)
Nhờ mn giúp mik với ạ
Tìm GTNN
A= \(\left(x-3y\right)^2+\left(2x-1\right)^4\)
B= \(\left|x-2\right|+\left|3x-2y\right|-4\)
C= \(\dfrac{-4}{\left|x+1\right|\left|y-3\right|+2}\)
D=\(\left|x-5\right|+\left|x-1\right|+7\)
Tìm x liên quan đến lũy thừa:
1, \(\left(3x-\dfrac{1}{5}\right)^2=\left(\dfrac{-3}{25}\right)^2\)
2, \(\left(2x-\dfrac{1}{3}\right)^2=\left(\dfrac{-2}{9}\right)^2\)
3, \(\left(\dfrac{1}{3}-x\right)^2=\dfrac{9}{25}\)
4, \(\left(5-x\right)^2=25\)
tính
A=\(\frac{2^{12}.3^5-4^6.9^2}{\left(2^2.3\right)^6+8^4.3^5}\)- \(\frac{5^{10}.7^{3-25^5.49^2}}{\left(\left(125.7\right)^3\right)+5^9.14^3}\)