Question

Q11 simplify (i) (a-b+c)^2​

Answer 1

Answer:

a2 + b2 + c2 + 2ab + 2bc + 2ca

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Step-by-step explanation:

Answer 2

Step-by-step explanation:

(a-b+c)*(a-b+c)

a²-ab+ac-ab+b²-bc+ac-bc+c² = a² + b² + c² -2ab -2bc + 2ac

a² + b² + c² -2(ab + bc - ac)

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