Replacing x by 4 and y by 2, it is found that the value of the expression is of 8.
The expression given is:
![x(x - y) - y(y^2 - x)](https://tex.z-dn.net/?f=x%28x%20-%20y%29%20-%20y%28y%5E2%20-%20x%29)
We want to evaluate it for x=4 and y=2, hence, we replace x by 4 and y by 2, then:
![4(4 - 2) - 2(2^2 - 4) = 4(2) - 2(0) = 8](https://tex.z-dn.net/?f=4%284%20-%202%29%20-%202%282%5E2%20-%204%29%20%3D%204%282%29%20-%202%280%29%20%3D%208)
The value of the expression is of 8.
A similar problem, in which the objective is finding the value of an expression, is given at brainly.com/question/19548262
Answer:
a
Step-by-step explanation:
2x+3y where it is 2,2 become 4 plus 6 which is 10
Answer:
The value of x is -1.
Step-by-step explanation:
Simple equation:
☆Let's solve!
![15 = - 5x + 10 \\ \frac{ - 10 = \: \: \: \: \: \: \: \: - 10}{ \frac{5}{ - 5} = \frac{ - 5x}{ - 5} } \\ x = - 1](https://tex.z-dn.net/?f=15%20%3D%20%20-%205x%20%2B%2010%20%5C%5C%20%20%5Cfrac%7B%20-%2010%20%3D%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20-%2010%7D%7B%20%5Cfrac%7B5%7D%7B%20-%205%7D%20%20%3D%20%20%5Cfrac%7B%20-%205x%7D%7B%20-%205%7D%20%7D%20%20%5C%5C%20x%20%3D%20%20-%201)
I believe it's one of the four in photo.