2y(y + 7)

2y(4y + 7)

2y(4y + y)

2(4y² + 7y)

4(y² + 4y)

4y(y + 4)

y(4y –4)

4y(4y – 4)

x(4xy + x)

4(x² y + x² )

x(xy + x)

x² (4y + 1)

6xy(x – 4y)

6xy(xy –4)

6xy(x² –4y)

6xy(x² –4)

7(2x + y + 4z)

7(2x –y + 4z)

7(2x –7y + 4z)

7(2x –y + 28z)

3ab(4a² – 6ab – 1)

3ab(4a² + 6ab –1)

3ab(4a – 6ab² – 1)

3ab(4a –6ab² + 1)

(a +2b)(2 + 3m)

(a - b)(2 - 3m)

(a + 3m)(2 + b)

(a + b)(2 + 3m)

(m - 5)(3a - 2b)

(m + 5)(3a - 2b)

(m - 5)(3a +2b)

(3a - 5)(m - 2b)

(a + m)(a + b)

(m - n)(a - b)

(m + n)(a + b)

(a+ n)(m + b)