(2x+5)square - (2x+5) square -(2x-5)square
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Answered by
2
(2x)²-2×2x×5+(5)²
4x²-20x+25
Here is the answer
Answered by
1
Explanation:
=(2x+5)²-(2x+5)-(2x+5)²
=(49)-7-(49)
=42-49
=7x
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