Các câu hỏi tương tự
Cho x^2+y^2= 1. Tinh gia tri bieu thuc: 2(x^6+y^6)-3(x^4+y^4)?
tinh tong 2^3+4^3+6^3+8^3+.....2012^3
phân tích
1,(x-2)^4+(x-3)^4-1
2,(x-1)^4+(x+3)^4-512
3,(x-2)^6+(x-4)^6-64
4,x^4-3x^3+6x^2+3x+1
5,3x^4-2x^3-15x^2-2x+3
6,x^6-2x^5-4x^4+6x^3+4x^2-2x-1
cho x^2-x=1.tinh b=x^6-3x^5+5x^4+5x^3-6x^2-12x+2020
bai 1:cmr tich cua 3 so chan lien tiep thi chia het cho 48
bai 2 tinh
a=-1+2^2-3^2+4^2-5^2+6^2-..........-99^2+100^2
b=-1^2+2^2-3^2+4^2-5^2+6^2-..............-43^2+44^2-45^2
giai chi tiet nha
6^2*6^4-4^3(3^6-1)
6^2*6^4 - 4^3(3^6 - 1)
a) tinh (2-x)(1+2x)+(1+x)-(x^4+x^3-5x^2-5)
b)tìm x x(x+1)(x+6)-x^3=5x
62.64-43.(36-1)