Các câu hỏi tương tự
bo dau ngoac roi thu gon bieu thuc
a( b-c ) - c(b-d) +a(c+d) +bc
A=a^2+2a^2-1/a^2+2a+2a^2+1
a, rut gon bieu thuc
b, chung to rang voi a thuoc Z thi A khong toi gian
Cho bieu thuc A = a^3+2a2 -1/ a3+2a2+2a+1
a, Rut gon bieu thuc
b, CMR neu a la mot so nguyen thi A toi gian
cho bieu thuc a^3+2a^2-1/a^3+2a^2+2a+1
a) Rut gon bieu thuc
b)Chung minh rang neu a la so nguyen thi gia tri tim duoc cua bieu thuc o cau a) la 1 phan so toi gian
cho biểu thức A= a^3 +2a^2-1/a^3 +2a^2+2a+1
a, rut gon bieu thuc
b, CMR neu A la so nguyen thi gia tri cua bieu thuc tim duoc cua cau a la 1 phan so toi gian
Cho bieu thuc A=a3+2a3-1/a3+2a3+2a+1
a ,Rut gon bieu thuc
b,CMR neu a la so nguyen thi gia tri cua bieu thuc tim duoc o cau a la mot phan so toi gian.
cho biểu thức A= a^3 +2a^2-1/a^3 +2a^2+2a+1
a, rut gon bieu thuc
b, CMR neu A la so nguyen thi gia tri cua bieu thuc tim duoc cua cau a la 1 phan so toi gian
B1: Thu gon cac bieu thuc
a/ A=(a+b-c)-(2b+c-a)+(-2a+3b+4c)
b/ B=a.(a-b+c)-b.(b-c-a)-bc+a^2-b^2
c/ C= -2.(x-y)+3.(y+x)+4x-5y
Giúp mình với nhé!!
cho bieu thuc A =\(\frac{a^3+2a^2-1}{a^3+2a^2+2a+1}\)
a)rut gon bieu thuc
b)chung minh rang neu a la so nguyen thi gia tri cua bieu thuc tim duoc o cau a la mot phan so toi gian