Question

-x+y(x-4)x

X=-5 Y=-2

Answer 1

-85

Explanation:

-(-5)+(-2)(-5-4)(-5)

5-2(-9)(-5)

5-2(45)

5-90

-85

Answer 2

`-85`

Explanation:

`-x+y(x-4)x`

`-\left(-5\right)+\left(-2\right)\left(\left(-5\right)-4\right)\left(-5\right)`

Follow the PEMDAS order of operations:-

Calculate within the parentheses:-

`\left(-5\right)-4`

`=-9`

`-\left(-5\right)+\left(-2\right)\left(-9\right)\left(-5\right)`

Multiply:-

`\left(-2\right)\left(-9\right)\left(-5\right)`

Rule:-
`(-a) * (-b)=a* b`

`2\cdot \:9=18`

`=18\left(-5\right)`

`18\left(-5\right)=-18\cdot \:5=-90`

`=-\left(-5\right)-90`

`-\left(-5\right)-90`

Rule:-
`-(-a)=a`

`-\left(-5\right)=5`

Subtract:-

`5-90`

`=-85`