Question

(X + 3) is equal to X square + 6 X + 9 is _ equation
$(x + 3) { }^{2} = x {}^{2} + 6x + 9 =$
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Answer 1

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( x + 3 ) = x² + 6x + 9

( x + 3 ) = x² + 3x + 3x + 9

( x + 3 ) = x ( x + 3 ) 3 ( x + 3 )

( x + 3 ) = ( x + 3 ) ( x + 3 )

x + 3 = 0

x = -3