Toán Lớp 8: Phân tích nhân tử:
2x^4 + 3x^3 – 9x^2 -3x + 2
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: Phân tích nhân tử:
2x^4 + 3x^3 – 9x^2 -3x + 2
Comments ( 2 )
Gửi bạn đáp án
$2x^4\:+\:3x^3\:-\:9x^2\:-3x\:+\:2$
=((x – 1) x – 1) (x (2 x + 5) – 2)
=x (x (x (2 x + 3) – 9) – 3) + 2
=(x^2 – x – 1) (2 x^2 + 5 x – 2)