Question

x2+7x+12 find the answer

Answer 1

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x² + 7x + 12

= x² + 3x + 4x + 12

= x ( x +3) + 4( x + 3)

= (x + 4) (x + 3)

x² + 7x + 12 will be ‘0’ , when

(x + 4) (x + 3) = 0

→ x + 4 = 0

or x + 3 = 0

→ x = -4

or x = -3

∴ Answer is -4 , -3

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Answer 2

Answer:

$(x + 3)( \times + 4)$