elliemiaa
elliemiaa
05-07-2016
Mathematics
contestada
Factorise x2 + 5x + 6
Respuesta :
olemakpadu
olemakpadu
05-07-2016
x² + 5x + 6.
When the x² is alone, you just think of two numbers that add up to give 5 and multiply to give 6.
those are 2 and 3.
x² + 5x + 6
x² + 2x + 3x + 6
x(x + 2) + 3(x + 2)
(x + 2)(x + 3)
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