How would you factorise x^(2) + 16x + 40.
x
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Maths1210
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- 04-02-2018 17:06
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- 04-02-2018 17:09
completing the square maybe
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- 04-02-2018 17:11
surely you can complete the square with (x 8)^2 - 24 ?
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Maths1210
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- 04-02-2018 17:14
(Original post by guys014)
surely you can complete the square with (x 8)^2 - 24 ? -
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- 04-02-2018 17:35
(Original post by Maths1210)
Oh right. I thought it would be harder as its a 3 mark question.
x^2+16x+40
16/2 = 8
8^2=64
64-40=24
(x+8)^2 - 24
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Updated: February 4, 2018
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