Question

maths question and answer please​

Answer 1

15) 8 - 8 + 1 = 1

16) 1

17)  $(2a+5)(a+2)$

18) (i) $8xy^{2}$

   (ii) 1

Answer 2

1). 8-8+1=1
2) 1
3) 2a^2+5a+4a+10
=2a(a+2)+5(a+2)
=(2a+5)(a+2)
4) 8xy^2
1