Question

Evaluate
a(a+b-c) - bc​

Answer 1

Answer:

in pic

Step-by-step explanation:

(a+bc)(a−bc)(a

2

+b

2

c

2

) =[(a

2

)−(bc)

2

](a

2

+b

2

c

2

) [∵(a+b)(a−b)=a

2

−b

2

]

=(a

2

−b

2

c

2

)(a

2

+b

2

c

2

)

=(a

2

)

2

−(b

2

c

2

)

2

=a

4

−b

4

c

4

Answer 2

Answer:

a^2 +ab - ac - bc

Step-by-step explanation:

a(a+b-c) - bc

= a^2 +ab - ac - bc

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