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在一幅长60cm,宽40cm的矩形风景画的四周镶一条金色纸边,制成一幅矩形挂图,...
在一幅长60cm,宽40cm的矩形风景画的四周镶一条金色纸边,制成一幅矩形挂图,如图所示,如果要使整个挂图的面积是2816cm
2,设金色纸边的宽为xcm,那么x满足的方程是( )
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A.(60+x)(40+2x)=2816
B.(60+x)(40+x)=2816
C.(60+2x)(40+x)=2816
D.(60+2x)(40+2x)=2816
考点分析:
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