Question

If a [] b is an operation for integers a and b such that a [] b= a b + b x b - 2x ax (-b), then find (-8) [] (-2).​

Answer 1

Step-by-step explanation:

Given :-

a [] b is an operation for integers a and b such that a [] b= a b + b x b - 2x ax (-b)

To find:-

Find the value of (-8) [] (-2) ?

Solution:-

Given that

a [] b is an operation for integers a and b such that a [] b= a b + b x b - 2x ax (-b)

We have a = -8 and b= -2

Now the value of (-8) [] (-2)

=> (-8)(-2) + (-2)(-2) -2×(-8)×(-(-2))

=> 16 + 4 - 2(-8)×(2)

=> 16+4 -(-32)

=> 16+4+32

=> 52

Answer:-

The value of (-8) [] (-2) for the given problem is 52

Used formula:-

• (+)quantity × (+) quantity =(+) quantity

• (+)quantity × (-) quantity =(-) quantity

• (-)quantity × (+) quantity =(-) quantity

• (-)quantity × (-) quantity =(+) quantity