25(a+b)2 - 16(a-b)2
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25*a²+b²+2ab-16*a²+b²-2ab
25a²+b²-16a²+b²
9a²+2b²
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6
Answer:
Given - 25(a+b)2 - 16(a-b)2
To find -
- answer of this
SOLUTION -
25( a+ b)^2 - 16(a-b)^2
25( a^2 + b^2 + 2ab) - 16( a^2+ b^2 + 2ab)
25a^2 + 25b^2 + 50ab - 16a^2 - 16b^2 - 32ab
Reaaranging like terms
25a^2 - 16a^2 + 25b^2 - 16b^2 + 50ab - 32ab
9a^2 + 9a^2 + 18ab
9( a^2 + a^2 + 2ab)
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