Question

Find the product of (2a - b + c) (4a² + b2 + c2 + 2ab + bc - 2ca).​

Answer 1

Answer:

Answer

WE need to find value of (2a+b+c)(4a

2

+b

2

+c

2

−2ab−bc−2ac)

(2a+b+c)[(2a)

2

+(b)

2

+(c)

2

−(2a)(b)−(b)(c)−(2a)(c)]

(x+y+z)(x

2

+y

2

+z

2

−xy−yz−zx=x

3

+y

3

+z

3

−3xyz

Compairing both, we get

x=2ay=b and z=c

Then (2a+b+c)[(2a)

2

+(b)

2

+(c)

3

−(2a)(b)−(b)(c)−(2a)(c)]

= (2a)

3

+b

3

+c

3

−3(2a)(b)(c)

= 8a

3

+b

3

+c

3

−6abc

Answer 2

Answer:

thanks

Step-by-step explanation:

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