Question

срочно срочно СРОЧНО СРОЧНО СРОЧНО СРОЧНО!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
1) (х^2+2x-3)*2x=
2) (m-3)(m+3)=

Answer 1

1) x^3+4x^2-6x
2) m^2 - 9

Answer 2

3)2y^2+(2y+1)(3-y),при y=-1
4)(x+2)(x-5)-3x(1-2x)=