Question

30a³b + 5ab³- 15ab =

2an + n +2am + m =

ac - bc + ad - bd =

5x³y + 20x² y² =

5y³ - 4y² + 10y-8  =

2x³y³ + 4x²y²z =

4m² + 6am =

7x² + 14xy + 7y² =

6x²y + 12xy - 9xyz

Answer 1

30a³b + 5ab³- 15ab =  5ab(6a²+b²-3)

2an + n +2am + m =  n(2a+1)+m(2a+1) = (2a+1)(n+m)

ac - bc + ad - bd =  c(a-b)+d(a-b)=(a-b)(c+d)

5x³y + 20x² y² = 5x²y(x+4y)

5y³ - 4y² + 10y-8  =  y²(5y-4)+2(5y-4)=(5y-4)(y²+2)

2x³y³ + 4x²y²z = 2x²y²(y+2z)

4m² + 6am = 6m(m+a)

7x² + 14xy + 7y² = 7(x²+2xy+y²)=7(x+y)²

6x²y + 12xy - 9xyz  = 3xy(2x + 4 - 3z)