Question

(x+1) (x+3) =0. hello guys please help these question ​

Answer 1

Answer:

${x}^{2} + 4x + 3$

Step-by-step explanation:

$= > (x + 1)(x +3) = 0 \\ = > {x}^{2} + 3x + x + 3 \\ = > {x}^{2} + 4x + 3$

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