Question

how to solve it method by method ​

Answer 1

Answer:

-34

Step-by-step explanation:

Given: x= 2, y= -1

5y-3x²+xy-(3x²-5y-2)

5y-3x²+xy-3x²+5y+2

5y+5y-3x²-3x²+xy+2

10y-6x²+xy+2

substitute these value in the given equation

10×(-1)-6×(2)²+(2)(-1)+2

-10-6×4+2(-1)+2

-10-24-2+2

-34

correct explanation

hope you understand