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Multiply: (x10 9)(x10 - 9)

User Mgalgs
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1 Answer

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By difference of two squares:

(x - y)(x +y) = x²- y²

(x¹⁰ + y¹⁰)(x¹⁰ - y¹⁰)= (x¹⁰)² - (y¹⁰)² = x⁽² ˣ¹⁰⁾ - y⁽² ˣ¹⁰⁾ = x²⁰ - y²⁰

(x¹⁰ + y¹⁰)(x¹⁰ - y¹⁰) = x²⁰ - y²⁰

Hope this helps.
User Denis Rudov
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