Question

simplify (a+b+c)^2-(a-b-c) ^2

Answer 1

Answer:

Use a^2-b^2=(a+b)(a-b)

Step-by-step explanation:

(a+b+c+a-b-c)(a+b+c-a+b+c)=2a×(2b+2c)=2a×2(b+c)

=4a(b+c)

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Answer 2

Answer:

(a+b+c)^2-(a-b-c) ^2

x²-y²=(x+y)(x-y)

here X=a+b+c

y=a-b-c

(a+b+c+a-b-c)( a+b+c-[a-b-c])

2a(a+b+c-a+b+c)

2a(2b+2c)

4a(b+c)

hope it helps

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