Factorise x square+7x+12
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x^2+7x+12
=x^2+4x+3x+12
=x[x+4]+3[x+4]
=[x+3][x+4]
=x^2+4x+3x+12
=x[x+4]+3[x+4]
=[x+3][x+4]
Anonymous:
if helped mark as the best
Answered by
5
x^{2} + 7x + 12
x^{2} + 4x + 3x + 12X
(x + 4) + 3 (x + 4)
(x + 4) (x + 3)
x^{2} + 4x + 3x + 12X
(x + 4) + 3 (x + 4)
(x + 4) (x + 3)
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