Question

Factorise : x2 + 7x + 12.​

Answer 1

Answer:

${x}^{2} + 7x + 12$

${x}^{2} + 3x + 4x + 12$

$x(x + 3) + 4(x + 3)$

$(x + 4)(x + 3)$

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$x + 4=0$

$x = -4$

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$x + 3=0$

$x = -3$

Answer 2

Here is Your Answer :-

x² + 7x + 12

factorise using middle term split method :-

x² + 7x + 12

=> x² +4x +3x +12

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

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

x + 3 = 0 or. x +4 = 0

x = -3. or. x = -4

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