solve this problem by using grouping method ❗
answer it quickly!
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35a²+12a+1=0
35a²+7a+5a+1=0
7a(5a+1)+1(5a+1)=0
a=-1/7 and a=-1/5 OK friend
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a² + 12/35 a + 1/35 = 0
a² + 1/7a + 1/5 a + 1/35 = 0
a ( a + 1/7 ) + 1/5 ( a + 1/7 ) = 0
( a + 1/7 ) ( a + 1/5 ) .....
hope this helps uh dear❤
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