Các câu hỏi tương tự
So 3^50 + 1 co la tich cua 2 so tu nhien lien tiep khong ?
Thanks moi ng , co giai chi tiet vs nha!
tim 3 so tu nhien lien tiep,biet tich cua 2 so sau lon hon tich cua 2 so dau la 25
tim 3 so tu nhien chan lien tiep,bieu neu ta lay binh phuongcua so o giua tru di tichcua so lon nhat va so be nhat thi ket qua thu dc dung bang 1/3n cua so be nhat
bai 1:tim xa)x+x2-x3-x40b)2x3+3x2+2x+30c)x4-2x3+10x2-20x0bai 2:tim cap so (x,y) bietxy+3x-4y12bai 3:voi gia tri nao cua xa)x3-x2+3x-30b)x3+x3+9x+90c)4x3-14x2+6x-210d)x2(2x2+3)+2x2+30bai 4:CMR hieu binh phuong 2 so le lien tiep thi chia het cho 8
Đọc tiếp
bai 1:tim x
a)x+x2-x3-x4=0
b)2x3+3x2+2x+3=0
c)x4-2x3+10x2-20x=0
bai 2:tim cap so (x,y) biet
xy+3x-4y=12
bai 3:voi gia tri nao cua x
a)x3-x2+3x-3>0
b)x3+x3+9x+9<0
c)4x3-14x2+6x-21<0
d)x2(2x2+3)+2x2+3>0
bai 4:CMR hieu binh phuong 2 so le lien tiep thi chia het cho 8
giai chi tiet giup minh may bai nay nha
1 gia tri x>0 thoa man
(2x-3)2=(x+5)2
2 gia tri lon nhat cua -3x2-6x-4
3 tim gia tri cua x+y biet
x-y=2 ; x*y=99 va y <0
4 nghiem cua phuong trinh
(2x-3)2-4x2-297=0
giai chi tiet giup to may bai nay nha1. Cho tam giac ABC co trung tuyen AM . Goi I la trung diem cua AM. Tia BI cat AC tai D, qua M ke duong song song voi BD cat CD tai E. Biet BD18cm , khih do ID ? cm2. gia tri lon nhat cua bieu thuc Q 5-x2+2x2-4y2-4y3 . gia tri cua x thoa man (12x-5)(4x-1)+(3x-7)(1-16x)81 , x?4. x+y3 , gia tri cua bieu thuc Q x2+2xy+y2-4x-4y+1?5 . a+b+c0 va abc-2 thi a3+b3+c3 ?6. rut gon bieu thuc(a2+b2)2-4a2b2voi a2-b25 ta duoc ket qua ?
Đọc tiếp
giai chi tiet giup to may bai nay nha
1. Cho tam giac ABC co trung tuyen AM . Goi I la trung diem cua AM. Tia BI cat AC tai D, qua M ke duong song song voi BD cat CD tai E. Biet BD=18cm , khih do ID = ? cm
2. gia tri lon nhat cua bieu thuc Q= 5-x2+2x2-4y2-4y
3 . gia tri cua x thoa man (12x-5)(4x-1)+(3x-7)(1-16x)=81 , x=?
4. x+y=3 , gia tri cua bieu thuc Q = x2+2xy+y2-4x-4y+1=?
5 . a+b+c=0 va abc=-2 thi a3+b3+c3= ?
6. rut gon bieu thuc(a2+b2)2-4a2b2voi a2-b2=5 ta duoc ket qua ?
Bài 1:xác định các hằng số a và b sao cho
a)x^4+ax+b chia het cho x^2-x+1
b)ax^3+bx^2+5x-50 chia het cho x^2+3x-10
c)ax^4+bx^3+1 chia het cho da thuc (x-1)^2
d)x^4+4 chia het cho x^2+ax+b
Bai 2tim du khi chia cac da thuc sau
a)x^43 chia (x^2+1)
b)(x^27+x^9+x^3+x) chia (x-1)
c)(x^99+x^55+x^11+x+7) chia (x+1)
d)(x^99+x^55+x^11+x+7) chia (x^2+1)
Thực hiện phép tính
a. M=-1^2+2^2-3^2+4^2-...-99^2+100^2.
b. M=-1^3+2^3-3^3+4^3-5^3+6^3-7^3+8^3-2^2-4^2-6^2-8^2.
Bai 1 TINH
a) x ^2 . x -2x^3
b) 6 x^2y . 3xy - 2y^2.x +y
C) 4x^2 +5x -1 .2x^3 -3x
d)-8x^3y + 2y^4 . 3xy^3 - 2x^4 +7y^4
GIUP MINH NHÀ
tim 3 so tu nhien lien tiep,biet tich cua 2 so sau lon hon tich cua 2 so dau la 52