check whether 7+3x is a factor 3x3+ 7x
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if 7+ 3x is factor 7+3x=0
3x= -7
x= -7/3put in 9+7x
9+7*-7/3
9-49/3
27-49/3
=-22/3 no factor
3x= -7
x= -7/3put in 9+7x
9+7*-7/3
9-49/3
27-49/3
=-22/3 no factor
manisha102:
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