Question

In which of the following, the two expressions are like terms?
7x and 7y
7x and 8x
Both
None
6. If we add, 7xy + 5yz – 3zx, 4yz + 9zx – 4y and –3xz + 5x – 2xy, then the answer is
5xy + 10yz +3zx + 5x – 6y
5xy – 9yz +3zx – 5x – 4y
5xy + 9yz +3zx + 5x – 4y
None
7. If we subtract 4a – 7ab + 3b + 12 from 12a – 9ab + 5b – 3, then the answer is
8a-2ab+2b-15
8a+2ab+2b+15
8a-2ab-2b-15
None
8.The expression x + 3 is in
One variable
Two variables
Three variables
None
9.The expression 4xy + 7 is in
One variable
Three variables
Two variables
None
10.The expression x + y + z is in
One variable
Two variables
Three variables
None

Answer 1

Answer:

what values of ( x,y) satisfy the given equation x cube - 2x square y + 2xy square - y square = 0