4. (b-2)(b-5)
8. (m + 3) (m - 2
12. (5 - xy) (3 + xy)
16. (2x + 3) (3x + 2)
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Step-by-step explanation:
4. b^2 - 5b - 2b - 10
= b^2 - 7b + 10 @nswer
8. m^2 -2m + 3m -6
= m^2 +m - 6 @nswer
12. 15 +5xy -3xy + xy^2
= xy^2 +2xy +15 @nswer
16. 6x^2 +4x +9x +6
= 6x^2 + 13x+ 6 @nswer
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