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Nostrana [21]
3 years ago
9

(ab - 9)(ab + 8) please simplify for me

Mathematics
1 answer:
Ahat [919]3 years ago
5 0

1. Use the FOIL method: (a+b)(c+d)=ac+ad+bc+bd(a+b)(c+d)=ac+ad+bc+bd(a+b)(c+d)=ac+ad+bc+bd

a​^2​​b​^2​​+8ab−9ab−72

2. Collect the like terms

a^2b^2+(8ab−9ab)−72

3. Simplify

a^2b^2-ab-72

Hope this helps




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