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Operations on Algebraic Expressions — Maths STD 8 — Question

Maharashtra BoardEnglish MediumSTD 8MathsOperations on Algebraic Expressions1 Mark
Question
Find following products:
$(2 x+5)(2 x-5)$
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Answer

$(2 x+5)(2 x-5)$
$=(2 x)^2-(5)^2$
$=4 x^2-25$

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