What is the value of ax² + bx + c, if x = -b a
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a(-ba) 2 +b(-ba) + c
a x b2 x a2+ (-b2 )+ a + c
a3b2-b2 + a + c
those 2and 3 numbers r squares
a x b2 x a2+ (-b2 )+ a + c
a3b2-b2 + a + c
those 2and 3 numbers r squares
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