代数式4x^2-48xy+144y^2,x^2-6y,x-6xy的和为S,试将S因式分解,当x=1,y=6时,S的值为多少
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/05 12:33:48
![代数式4x^2-48xy+144y^2,x^2-6y,x-6xy的和为S,试将S因式分解,当x=1,y=6时,S的值为多少](/uploads/image/z/5130943-7-3.jpg?t=%E4%BB%A3%E6%95%B0%E5%BC%8F4x%5E2-48xy%2B144y%5E2%2Cx%5E2-6y%2Cx-6xy%E7%9A%84%E5%92%8C%E4%B8%BAS%2C%E8%AF%95%E5%B0%86S%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%2C%E5%BD%93x%3D1%2Cy%3D6%E6%97%B6%2CS%E7%9A%84%E5%80%BC%E4%B8%BA%E5%A4%9A%E5%B0%91)
x){{7356413*u*t**jy:Ɏ]:/O}-@MO;^,_t
[CJ[gӷT7~d
mb~
|lkZlhnakjP VcbjjVTjjCX
afk
X$ف J"m
代数式4x^2-48xy+144y^2,x^2-6y,x-6xy的和为S,试将S因式分解,当x=1,y=6时,S的值为多少
代数式4x^2-48xy+144y^2,x^2-6y,x-6xy的和为S,试将S因式分解,当x=1,y=6时,S的值为多少
代数式4x^2-48xy+144y^2,x^2-6y,x-6xy的和为S,试将S因式分解,当x=1,y=6时,S的值为多少
S=5x²-54xy+144y²+x-6y
=(x-6y)(5x-24y)+(x-6y)
=(x-6y)(5x-24y+1)
=(1-36)×(5-144+1)
=4830