Question

solve the quadratic equation x square + 6 x + 9 is equal to zero​

Answer 1

Answer:

plz refer to the attachment dear...

Step-by-step explanation:

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Answer 2

Answer:

${x}^{2} + 6x + 9 = 0 \\ \\ {x}^{2} + 3x + 3x + 9 = 0 \\ \\ x(x + 3) + 3(x + 3) = 0 \\ \\ {(x + 3)}^{2} = 0 \\ \\ x = - 3$