Math, asked by princess60, 11 months ago

please answer question 2

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Answered by divergent07
0
by the use of (a+b)^2 identity
here is
(3/5a -10b^2)
=9/25a^2 + 100b^2 -2×3/5 ×10 ab
=9/25a^2 +100b^2 - 12ab
hope u understand now
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