Question

Hey!!! Here is your Maths question



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

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Answer 1

Answer:

Step-by-step explanation:

❣Holla user❣

Here is ur ans⬇️⬇️

first Method :-

by (a+b+c)^2 formula

(a+b-c)^2=a^2+b^2-c^2+2ab-2bc-2ca

(a-b+c)^2=a^2-b^2+c^2-2ab-2bc+2ca

Now

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

a^2+b^2-c^2+2ab-2bc-2ca-[a^2-b^2+c^2-2ab-2bc+2ca]

a^2+b^2-c^2+2ab-2bc-2ca-a^2+b^2-c^2+2ab+2bc-2ca

2b^2-2c^2-4ac+4ab

2b^2+4ab-2c^2-4ac

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

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

Second Method:-

By (a^2-b^2) formulae

Referred the attachment below⬇️⬇️

Hope it helps u^_^

Answer 2

Answer:

4bc - 4ac

Step-by-step explanation:

Given Equation is (a + b - c)² - (a - b + c)²

∴ a² - b² = (a - b)(a + b)

⇒ (a + b - c - a + b - c)(a + b - c + a - b + c)

⇒ (2b - 2c)(2a)

⇒ 4bc - 4ac

Hope it helps!