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prisoha [69]
3 years ago
11

Solve the equation 40a^2+4a=0

Mathematics
1 answer:
sergiy2304 [10]3 years ago
7 0
40a^2+4a=0\ \ \ \ |divide\ both\ sides\ by\ 4\\\\10a^2+a=0\\\\a(10a+1)=0\iff a=0\ or\ 10a+1=0\\\\a=0\ or\ 10a=-1\\\\\boxed{a=0\ or\ a=-0.1}
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