Answer:
[tex]4ab - 6ab + 3a {}^{2} b + 4ab {}^{2} +5a {}^{2} b \\ = - 2ab + 3 {a}^{2} b + 4a {b}^{2} + 5 {a}^{2} b \\ = - 2ab + 8 {a}^{2} b + 4a {b}^{2} \\ = - 2ab \times (1 - 4a - 2b)[/tex]
Step-by-step explanation:
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