Expand (x+5y)(x-5y)
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Answer:
x ² - 25y²
Step-by-step explanation:
( x + 5y ) ( x - 5y)
By 3rd identity ,
(a + b) (a - b) = a² - b²
(x + 5y) (x - 5y) = x² - (5y²)
(x + 5y) (x - 5y) = x² - 25y²
So, x² - 25y² is your answer....
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