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What is the complete factorization of 4x² - 25?

User Sethbro
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1 Answer

5 votes

Answer: (2x+5)(2x-5)

Explanation:

4x² - 25=

2²x² - 5²=

(2x)² - 5²=

(2x)(2x) - 5(5)=

(2x)(2x) - 5(2x) + 5(2x) - 5(5)=

2x(2x-5) + 5(2x-5)=(2x+5)(2x-5)

User Pindare
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