(100-2X)x(50-2x)=3600算一下x=?

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(100-2X)x(50-2x)=3600算一下x=?
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(100-2X)x(50-2x)=3600算一下x=?
(100-2X)x(50-2x)=3600算一下x=?

(100-2X)x(50-2x)=3600算一下x=?

10和-10

(100-2x)(50-2x)=3600
5000-200x-100x+4x^2=3600
-300x+4x^2=-1400
4x^2-300x=-1400
x^2-75x=-350
x^2-75x+350=0
x -5
x -70
x1=5
x2=70
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