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已知(x-)3=ax3+a1x2+a2x+a3,则(a+a2)2-(a1+a3)2=A.-...
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已知(
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALtJREFU
OE/Nk9sVhCAMRENH9EMXFEET9EAB1ME59pAmsgmPFRF15Wv5UuQymUlUxAuGpZQat+bvAo+LT862
z+f+HMZIlq2IHfDpW+zU3NFzIm8jYUb4mS9o/DOMWMEimPwbuE80+bdl74oLnjvpGpyNJYFnz8Mg
YLQENUCgYEoLwOwtuJuwzjeEEDLkNJB2WynnEkaKdpZ2rqCoH2BRagPS9fjk2fBHUV/6MTanCbRb
g6UUUV9SbnH/Cn8A/r2EUaEPy7EAAAAASUVORK5CYII=
)
x-
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jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMlJREFU
OE/NU9ENxCAI1Y3cxy0cwiXYwQGcg6Q7uAQnKt5pTer5VZImYnk8eKCmbGoyrfV8tfYZPFuOXF3f
414ORmBd6ucipVbusrmh5xTJAbZwJOAEzX8EJ8TOxBlSdJ39EXwTlFvYZZ7BCIqki/+Yh/7zcu3P
OVF0QCJd2UwKto3B9jyrDUNwFGVGMqoQQjl6o8j4q5xnMCvcp8UBWTT2v2WXCir7L5gF6gsii6Jq
+UPPNv9k9qOHcXlDyvgzMJfM7EfMIvcu+APTLYOZ98eL2wAAAABJRU5ErkJggg==
)
)
3=ax
3+a
1x
2+a
2x+a
3,则(a+a
2)
2-(a
1+a
3)
2=( )
A.-1
B.1
C.-2
D.2
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