Question

Do as directed.
1. Add ab-bc into bc-ca
2. Subtract (3x² – 2x + 5xy - 7) from (8 – 9xy + 3x2 – 5x)​

Answer 1

Answer:

1.ab-ca

2. -3x-14xy+15

hope it helps

Answer 2

Answer:this is the correct answer ab-bc+bc-ca = ab-ca

2:- answer is this

8-9xy-3x2-5x+(3x2- 2x+5xy-7)

= 8-9x-3x2-5x+3x2-2x + 5xy-7

= 8-7-9xy+5xy+3x2-3x2-5x-2x

= 1-4xy-0x2-7x