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30-04-2017
Mathematics

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how to expand (2x+1)(x+1)

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30-04-2017

(2x+1)(x+1)
Now multiply 2x to both x and +1
2x^2+2x
Do the same with 1 multiply it to x and +1
2x^2+2x +x+1
Simplify
2x^2+3x+1

Answer Link

30-04-2017

You must perform indicated multiplication...

2x(x)+2x(1)+1(x)+1(1)

2x^2+2x+x+1 now combine like terms...

2x^2+3x+1

Answer Link

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