galaxyboi041
galaxyboi041
12-12-2019
Mathematics
contestada
Multiply (5x+3)(5x-3)
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nonsibi
nonsibi
12-12-2019
Well, (a+b)(a-b)=a^2-b^2.
So, (5x+3)(5x-3)=25x^2-9.
answer: 25x^2-9
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