Question 624444
1. How do you find the product of the sum and the difference of the same two terms?
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{{{(a-b)*(a+b) = a(a+b) - b*(a+b)}}}
Multiply same as any 2 binomials
= {{{a^2 + ab - ab - b^2}}}
= {{{(a-b)*(a+b) = a^2 - b^2}}}