Toán Lớp 8: a,(3x-2y)(2y+3x)
b,(4x^2 – 4x +1) : (2x-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: a,(3x-2y)(2y+3x)
b,(4x^2 – 4x +1) : (2x-1)
Comments ( 1 )
a,9{x^2} – 4{y^2}\\
b,2x – 1
\end{array}\)
a,\left( {3x – 2y} \right)\left( {2y + 3x} \right)\\
= 9{x^2} – 4{y^2}\\
b,\dfrac{{4{x^2} – 4x + 1}}{{2x – 1}}\\
= \dfrac{{{{\left( {2x – 1} \right)}^2}}}{{2x – 1}} = 2x – 1
\end{array}\)