Question

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

Answer 1

Answer :

Now,

(a + b + c)² - (a + b - c)²

= (a + b + c + a + b - c)
(a + b + c - a - b + c),

using the identity x² - y² = (x + y) (x - y)

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

= 2 (a + b) × 2c

= 4 (a + b)c

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Answer 2

$(a + b + c)^{2} - (a + b - c)^{2}$

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We know, x²-y² = (x + y)(x - y)
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(a+b+c-a-b+c)(a+b+c+a+b-c)


(2c)(2a + 2b)

(2×2)(c)(a + b)

4ac + 4bc

I hope this will help you

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