Question

(a+b-c)² is equal to​

Answer 1

Answer:

$\huge\underline{\rm\red{Reticent_Bliss}}$

Step-by-step explanation:

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

We know that,

(x + y + z) ² = x² + y² + z² + 2xy + 2yz + 2zx

Let,

• x = a
• y = b
• z = -c

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[a + b + (-c)]² = a² + b² + (-c)² + 2ab + 2b(-c) + 2(-c)a

→ ( a + b - c )² = a² + b² + c² + 2ab - 2bc - 2ca

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$\huge\underline{\rm\red{Reticent_Bliss}}$

Answer 2

Step-by-step explanation:

(a+b+(-c)² = a² + b² + (-c)² + 2ab + 2b(-c) + 2(-c)a

(a+b-c)² = a² + b² - c² + 2ab - 2bc - 2ca

Hence you gotta your answer .