\(128\times\left(\frac{3}{2x}-\frac{1}{4}\right)^3=-250.\)

\(\left(\frac{3}{2x}-\frac{1}{4}\right)^3=-250\div128\)

\(\left(\frac{3}{2x}-\frac{1}{4}\right)^3=\frac{125}{64}\)

\(\left(\frac{3}{2x}-\frac{1}{4}\right)^3=\left(\frac{5}{4}\right)^3\)

\(\Rightarrow\frac{3}{2x}-\frac{1}{4}=\frac{5}{4}\)

\(\Rightarrow\frac{3}{2x}=\frac{5}{4}+\frac{1}{4}\)

\(\Rightarrow\frac{3}{2x}=\frac{3}{2}\)

\(\Rightarrow2x=2\)

\(\Rightarrow x=1\)

     \(128x\left(\frac{3}{2}X-\frac{1}{4}\right)^3=-250\)

\(\left(=\right)\left(\frac{3}{2}X-\frac{1}{4}\right)^3=-250:128\)

\(\left(=\right)\left(\frac{3}{2}X-\frac{1}{4}\right)^3=-\frac{125}{64}\)

\(\left(=\right)\left(\frac{3}{2}X-\frac{1}{4}\right)^3=\left(-\frac{5}{4}\right)^3\)

\(\left(=\right)\frac{3}{2}X-\frac{1}{4}=-\frac{5}{4}\)

\(\left(=\right)\frac{3}{2}X=-\frac{5}{4}+\frac{1}{4}\)

\(\left(=\right)\frac{3}{2}X=-\frac{4}{4}\)

\(\left(=\right)\frac{3}{2}X=-1\)

\(\left(=\right)X=-1:\frac{3}{2}\)

\(\left(=\right)X=-\frac{2}{3}\)

Vậy \(X=-\frac{2}{3}\)

a,35400

b,6570 tich nhe ban

354*32+354*68

=354 *(32+68)

=354*    100

=35400

a,35400

b,6570

Tích nhé

=\(\sqrt[3]{64.2}+\sqrt[3]{-125.2}-7\sqrt[3]{8.2}\)

= \(4\sqrt[3]{2}-5\sqrt[3]{2}-14\sqrt[3]{2}=-15\sqrt[3]{2}\)

15 657 + x  = 19 656 

               x  = 19 656 – 15 657   

              x  =         3 999           

657x637=418509

657 x 637 = 418509

657 x 637 = 418509

k mk nhé bạn

75656 x 657

= 49705992

75656 x 657 = 49705992

k mình nha bạn !

=49705992

                          675 x 439 x 241 x 300 x 233 =  4. 991861318x10¹²

4.991.861.317.500

ĐÁP án 4858745015700

so to the nay ai ma lam noi