Question

rút gọn các biểu thức sau:

\(c=\frac{18.34+\left(-18\right).124}{-36.17+9.\left(-52\right)}\)

nhớ làm đầy đủ, mik tk

Answer 1

\(C=\frac{18.34+\left(-18\right).124}{-36.17+9.\left(-52\right)}=\frac{18.\left(34-124\right)}{9.\left(-4.17-52\right)}=\frac{18.\left(-90\right)}{9.\left(-120\right)}=\frac{3}{2}\)

Answer 2

\(c=\frac{18.34+\left(-18\right).124}{-36.17+9.\left(-52\right)}\)

\(=\frac{18.34+18.\left(-124\right)}{9.-3.17+9.\left(-52\right)}\)

\(=\frac{18.\left(34+\left(-124\right)\right)}{9.\left(-3+17\right).\left(52\right)}\)

tk ủng hộ mk nha!!!!!!!!!!

Answer 3

\(c=\frac{18.34=\left(-18\right).124}{-36.17+9.\left(-52\right)}\)

= \(\frac{18.34+18.\left(-124\right)}{36.\left(-17\right)+9.\left(-52\right)}=\frac{18.\left(-124+34\right)}{9.4.\left(-17\right)+9.\left(-52\right)}\)\(=\frac{18.\left(-90\right)}{9.\left(-68\right)+9.\left(-52\right)}=\frac{18.\left(-90\right)}{9.\left[-68+\left(-52\right)\right]}\)

\(=\frac{18.\left(-90\right)}{9.\left(-120\right)}\)\(=\frac{2.\left(-9\right)}{1.\left(-12\right)}=-\frac{18}{12}=\frac{-3}{2}\)