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23 votes
23 votes
(x+2)(x+1) expand and simplify

User Nico Prat
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2 Answers

11 votes
11 votes

Answer:

Step-by-step explanation: First we will expand so

x times x = x^2

x times 1 = x ( don’t need to put 1 in front)

2 times x is = 2x

2 times 1 = 2

Now we line them all up and look out if there are any like terms.

x^2 + x + 2x + 2 = x^2 +3x + 2

User Teamnorge
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3.4k points
13 votes
13 votes

Hello!

To expand:

==> we must multiply each variable with each other


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

Thus: when (x+2)(x+1) is expanded and simplified

==>
x^2+3x+2

User Vtolentino
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2.7k points