jstanley383 jstanley383
  • 19-09-2018
  • Mathematics
contestada

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

Respuesta :

Diamond2316100
Diamond2316100 Diamond2316100
  • 19-09-2018

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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