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ICSE Class 9 Answered

75(2a-b+1)²-12(a+b)²
Asked by Sushreesushree2000 | 28 Jun, 2020, 12:33: PM
answered-by-expert Expert Answer
Hint
Expland the squares

75(2a-b+1)²-12(a+b)²
 
75 (4a2 + b2 + 1 + 4ab + 2b + 4a) - 12(a2 + b2 + 2ab)
 
Simplify this further.
Answered by | 28 Jun, 2020, 03:40: PM
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