Question

Solve the maths wid full process :

Answer 1

Answer:

HOPE HELPS

PLEASE MARK BRAINLIEST

Step-by-step explanation:

75(2a-b+1)²-12(a+b)²

=>75(4a²+b²+1-4ab-2b+4a)-12(a²+b²+2ab)

=>300a²+75b²+75-300ab-150b+300a-12a²-12b²-24ab

=>288a²+63b²+300a-150b-324ab+75

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