Question

1)(X+5)×6+(x-3)в2=
2)(y-4) в2-(y+2)×8=
3)26-aв2-(5-а)в2=

Answer 1

Ответ на фото//////////////////////

Answer 2

1)(X+5)×6+(x-3)в2=6x+30+b²x-3b²

2)(y-4) в2-(y+2)×8=b²y-4b²-(8y+16)=b²y-4b²-8y-16

3)26-aв2-(5-а)в2=26-ab²-(5b²-ab²)=26-ab²-5b²+ab²=26-5b²