Question

Simplify the expression

Answer 1

Answer:

-88

Step-by-step explanation:

If a=2, we can say that -$a^{2}$ would be -4.

Secondly, if a=2 and b=-6 we can assume that 4ab would become -48.

Finally, if b=-6 we can say that -$b^{2}$ would become -36.

Adding all of those up gives you -88, your answer.

Answer 2

Answer:

-88

Step-by-step explanation:

Replace the variable a with 2

↓↓↓

$-(2)^2+4(2)*b-b^2$

Replace the variable b with −6

$-(2)^2+4(2)*(-6)-(-6)^2$

Raise 2 to the power of 2

$-1*4+4(2)*(-6)-(-6)^2$

Multiply −1 by 4

$-4+4(2)*(-6)-(-6)^2$

Multiply 4 by 2

$-4+8*-6-(-6)^2$

Multiply 8 by −6

$-4-48-(-6)^2$

Raise −6 to the power of 2

$-4-48-1*36$

Multiply −1 by 36

$-4-48-36$

basic subtraction follows this

and we are left with an answer of -88