A1. 2a-4 A2. 16a²+8a+1
A3. 4x’y-8xy-16xy?
A4. 2(a²+3bc)+a(3b+4c)
A5. b-c-a(c-b)
A6. x2-3x-5x+15
A7.9c2-a²b2
Co
A8. 2(3a’+bc)+a(4b+3c)​

olesyapurzikova olesyapurzikova    3   07.04.2021 10:54    0