计算:y=(-2x+100)(x-18)保留计算过程.

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/07 17:57:06

计算:y=(-2x+100)(x-18)保留计算过程.
计算:y=(-2x+100)(x-18)
保留计算过程.

计算:y=(-2x+100)(x-18)保留计算过程.
y=(-2x+100)(x-18)
=-2x²+100x+36x-1800
=-2x²+136x-1800

y=(100-2x)(x-18)
=100x-1800-2x²+36x
=-2x²+136x-1800

y=(-2x+100)(x-18)
= (-2x)* x+(-2x)*(-18)+100*x+ -100*(-18)
= -2x²+36x+100x-1800
= -2x²+136x-1800