Question

Simplifica la expresión: 2A + B + 3C - {A - 2B - 2(2A - 3B - C)}.

Answer 1

2a+b+3c-{a-2b-2(2a-3b-c)}

2a+b+3c-{a-2b-4a+6b+2c}

2a+b+3c-a+2b+4a-6b-2c

2a-a+4a+b+2b-6b+3c-2c

5a-3b+c

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Answer 2

$2A+B+3C-\{A-2B-2(2A-3B-C)\}=5A-3B+C$

Step-by-step explanation:

Given : Expression $2A+B+3C-\{A-2B-2(2A-3B-C)\}$

To find : Simplify the expression ?

Solution :

Expression $2A+B+3C-\{A-2B-2(2A-3B-C)\}$

Open the inner bracket first,

$=2A+B+3C-\{A-2B-4A+6B+2C\}$

Solve,

$=2A+B+3C-\{-3A+4B+2C\}$

Now open the bracket again,

$=2A+B+3C+3A-4B-2C$

Solve,

$=5A-3B+C$

Therefore, $2A+B+3C-\{A-2B-2(2A-3B-C)\}=5A-3B+C$

#Learn more

X pow (a+b) . x pow(b+c). x pow (c+a)/ (x pow(a). x pow(b) . x pow(c)) pow(2)=?

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