Toán Lớp 8: (2×3 + x2 + 2x – 5) : (x – 1) =?
Leave a reply
Register Now
Login
Lost Password
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Toán Lớp 8: (2×3 + x2 + 2x – 5) : (x – 1) =?
Comments ( 2 )
Giải đáp:
(2x^3 + x^2 + 2x – 5) : (x – 1)
= (2x^3 – 2x^2 + 3x^2- 3x + 5x – 5) : (x – 1)
= [2x^2.(x – 1) + 3x.(x – 1) + 5.(x – 1)] : (x – 1)
= [(x – 1).(2x^2 + 3x + 5)] : (x – 1)
= 2x^2 + 3x + 5
#dariana
Answer
(2x^3 + x^2 + 2x – 5) : (x – 1)
= (2x^2 + 3x + 5) . (x – 1) : (x – 1)
= (2x^2 + 3x + 5) . [(x – 1) : (x – 1)]
= 2x^2 + 3x + 5