Question

answer all the questions no spam or I will report account​

Answer 1

2. (-5a^2b) * (-5a^2b^2) = 25a^(2+2)b^(1+2)

= 25a^4b^3

3. (-7x^2y^2) * (-3xy^2) *(-2x^2y^2)

=-42x^(2+1+2)y^(2+2+2)

=-42x^5y^6

4. -3xy^2 (3x-4y)=-9x^(1+1)y^2+12xy^(2+1)

=-9x^2y2+12xy^3

5.(-4x+3y) * (3x-5y) =-12x^2+20xy+9xy-15y^2

=-12x^2+29xy-15y^2