The product of the sum and the difference of two numbers equals the difference of their squares

asked Jul 19, 2019 223k views

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$(a+b)(a-b)=(a)(a)+(a)(-b)+(b)(a)+(b)(-b)\\\\=a^2-ab+ab-b^2=a^2-b^2$

$Used\ distributive\ property$

OOEric answered Jul 24, 2019

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