Tim x thuoc \(Q\):

a) |5.(2x+3)|+|2.(2x+3)|+|2x+3|=16

b)|x²+|6x-2|| =x²+4

c)3x -|2x+1|=2

d)2.|x²+|x-1||=2x²+2

Cac anh chi CTV va cac ban giup mk nhe, mk dg can  gap lem, nhanh len nhoa!! Tks truoc

chung minh rang neu a,b,c la cac so khac 0 thoa man ab+ac/2=bc+ba/3=ca+cb/4 thi a/3=b/5=c/15

mk dg can gap nha

ai lm dc (giai ki) mk tick cho

chung minh rang neu a,b,c la cac so khac 0 thoa man ab+ac/2=bc+ba/3=ca+cb/4 thi a/3=b/5=c/15

mk dg can gap nha

ai lm dc (giai ki) mk tick cho

chung minh rang neu a,b,c la cac so khac 0 thoa man ab+ac/2=bc+ba/3=ca+cb/4 thi a/3=b/5=c/15

mk dg can gap nha

ai lm dc (giai ki) mk tick cho

chung minh rang neu a,b,c la cac so khac 0 thoa man ab+ac/2=bc+ba/3=ca+cb/4 thi a/3=b/5=c/15

mk dg can gap nha

ai lm dc (giai ki) mk tick cho

cho tam giac abc vuong oa co canh BC=2AB. tinh so do cac goc cua tam giac

mau len mk dg can gap

cho tam giac ABC vuong tai A, K la trung diem cua BC. Qua K ke duong thang vuong goc voi AK, duong thang nay cat cac duong thang AB va AC lan luot o D va E. Goi I la trung diem cua DE. Chung minh rang AI=BC

mk dg can gap (ai lm dc mk cho  3 tick va nho giai ki nha)

cho tam giac ABC vuong tai A, K la trung diem cua BC. Qua K ke duong thang vuong goc voi AK, duong thang nay cat cac duong thang AB va AC lan luot o D va E. Goi I la trung diem cua DE. Chung minh rang AI=BC

mk dg can gap (ai lm dc mk cho  3 tick va nho giai ki nha)

cho tam giac ABC vuong tai A, K la trung diem cua BC. Qua K ke duong thang vuong goc voi AK, duong thang nay cat cac duong thang AB va AC lan luot o D va E. Goi I la trung diem cua DE. Chung minh rang AI=BC

mk dg can gap (ai lm dc mk cho  3 tick va nho giai ki nha)