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factorise ${x}^{2}+8x+15$
by Diamond (53,882 points) | 28 views

2 Answers

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x^2 +5x+3x+15

= (x+3)(x+5)
by Diamond (40,360 points)
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these factors are used because if you add 5 and 3 you will get 8.
by Wooden (3,973 points)

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