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प्रश्न
Show that x = –3 is a solution of x2 + 6x + 9 = 0.
योग
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उत्तर
The given equation is x2 + 6x + 9 = 0
Putting x = –3 in the given equation, we get
LHS = (–3)2 + 6 × (–3) + 9
= 9 – 18 + 9
= (9 + 9) – 18
= 0 = RHS
∴ x = –3 is a solution of the given equation.
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