हिंदी

Show that x = –3 is a solution of x^2 + 6x + 9 = 0.

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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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अध्याय 4: Quadratic Equations - TEST YOURSELF [पृष्ठ २४०]

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आर.एस. अग्रवाल Mathematics [English] Class 10
अध्याय 4 Quadratic Equations
TEST YOURSELF | Q 33. | पृष्ठ २४०
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