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Find the product mentally. (ab + 3)(ab - 3)
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Find the product mentally. (ab + 3)(ab - 3)
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Jul 3, 2018
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Find the product mentally. (ab + 3)(ab - 3)
Mathematics
high-school
James Graham
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This is a difference if squares.
Multiply the terms in the parenthesis with the respective equal one.
I mean: ab*ab and +3*(-3)
a^2b^2 - 9
Comendeiro
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Jul 4, 2018
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Use the FOIL method
a^2b^2 - 9
John Burley
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Jul 8, 2018
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John Burley
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