Question

can anyone help me please
IF
$(a ^{2} + b {}^{2} )= (a + b {} ) {}^{2} then \\ (a) \: a + b = 0 \: (b) \: a = b \: (c) \: (2a = b) \: (d) ab= 0$
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Answer 1

Answer:

a²+b² = (a+b)²

a²+b² = a²+b²+2ab

Cancelling a²+b²

2ab = 0

ab = 0

OPTION (D) IS CORRECT

HOPE IT HELPS...