Question

$x2 + 6x + 8$
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Answer 1

x² + 6x + 8

solution

a + b = 6

ab = 1 × 8 = 8

1 , 8

2 ,4

1 + 8 = 9

2 + 4 = 6

a = 2

b = 4

( x ² + 2x ) + ( 4x + 8 )

x ( x + 2 ) + 4 ( x + 2 )

( x + 2 ) ( x + 4 )