find the following product [3 - 5 x] [ 3+ 5 x]
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Answer:
9 - 25x^2
Step-by-step explanation:
( 3 - 5x)( 3 + 5x)
= (3)^2 - (5x)^2. [ a^2 - b^2 = (a+b)(a-b)]
= 9 - 25x^2
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