plzzz solve this .......
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x =( -a +- √a.a + 8 a.a)/ 4
=( -a +- 3a )/4
= 2a/4 , -a
= a/2 ,-a
=( -a +- 3a )/4
= 2a/4 , -a
= a/2 ,-a
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