Question

1) 2 (a-3) +3 (a+3)
2) 3xy (x-y^2+1)-3x^2y+5xy
3) m (m-2) + (m-2) (m+1)

Answer 1

$1)2(a-3)+3(a+3)=2a-6+3a+9=5a+3$
$2)3xy(x-y^{2}+1)-3x^{2y}+5xy=3x^{2}y3xy^{3}+3xy-3x^{2y}+5xy$$=3x^{2}y-3xy^{3}+8xy-3x^{2y}$
$m(m-2)+(m-2)*(m+1)=(m-2)*(m+m+1)$$=(m-2)*(2m+1)$

Answer 2

От души❤️❤️❤️❤️❤️