|x|=1+2+3+4+5+...+2010 tìm x
2mũ x=2+4+6+8+10+...+2010 tìm x
697:15a+364/a=17 tìm a
tìm a thuộc N
697 : \(\frac{15a+364}{a}\)=17
Tìm a thuộc N biết
a) 697 : (15a+364/a) = 17
b) 92 . 4 - 27 = a+350/a + 315
\(a.697:\frac{15a+364}{a}=17\)
\(b.92.4-27=\frac{a+350}{a}+315\)
a.\(697:\frac{15a+364}{a}=17\)
b.\(92.4-27=\frac{a+350}{a}+315\)
697 : 15. x + 364/x =17
697:x[15.x+364):x]=17
697:[(15*x+364):x]= 17
697 : (15 . x + 364): x =17