plis ka bantuin pake cara

1.(2a-7b+5)-(a²+10a-4)
=2a-7b+5-a²-10a+4
=-a²-8a-7b+9

2.(5p+3a-7r)-(p-3a)
=5p+3a-7r-p+3a
=4p+6a-7r

3.(5x+2xy-3y)-(3x-2xy+5)
=5x+2xy-3y-3x+2xy-5
=2x+4xy-3y-5

4.(4x²-2y²)-(2x²-5xy+y²)
=4x²-2y²-2x²+5xy-y²
=2x²-3y²+5xy

5.(a+2b-5c)-(3a+2b-6)
=a+2b-5c-3a-2b+6
=-2a-5c+6


semoga membantu ya