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| 1. |
Show that x = -3 is the solution of the equation x2+6x +9 = 0. |
| Answer» x2 + 6x + 9 = 0.Put x = -3 in the equation{tex}\\Rightarrow{/tex}{tex}(-3)^2\xa0+ 6(-3) + 9{/tex}{tex}\\Rightarrow{/tex}\xa0{tex}9 - 18 + 9 =0{/tex}Hence, it is a solution of the given equation. | |