multiplying out double brackets e | Mathematics | Page 1

silver token Sep 19, 2022, 9:15 AM

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Hi

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How do I do

woeful lichen Sep 19, 2022, 9:26 AM

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you have to multiply each term in the first bracket with every term in other bracket like here

(x+3)(x+1)
=(x * x) + (x * 1) + (3 * x) +(3*1)
=x^2+ x + 3x +3
=x^2+4x+3

silver token Sep 19, 2022, 10:28 AM

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You can also explain like
(x+3)(x+1)
= x(x+1) + 3(x+1)
= x^2 + x + 3x + 3

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@silver token Are you from the UK?

silver token Sep 19, 2022, 2:41 PM

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Yes

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Why @silver token

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Scotland

#multiplying out double brackets e