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Find the product of (5x+4)(5x-4)

User Tanky Woo
by
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1 Answer

5 votes

Answer:

25x² - 16

Explanation:

Given

(5x + 4)(5x - 4)

Each term in the second factor is multiplied by each term in the first factor, that is

5x(5x - 4) + 4(5x - 4) ← distribute parenthesis

= 25x² - 20x + 20x - 16 ← collect like terms

= 25x² - 16

User Bumkyu
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