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Clarissa Sexton
Mathematics
27 February, 14:43
Factorise x³+13x³+32x+20
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Enrique Summers
27 February, 14:49
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Step-by-step explanation:
By inspection (after fixing the typo), x = - 1 is a root, so factoring out (x+1), we are left with
(x+1) (x^2+12x+20)
(x+1) (x+2) (x+10)
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