Question

( 3x + 4y - 2b )²
solve using this identity
{ ( a + b + c )² = a² + b² + c² + 2ab + 2bc + 2ca }


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Answer 1

Answer:

( 3x + 4y - 2b )²= 9x²+16y²+4b²+24xy-16yb-12bx.

Using identity { ( a + b + c )² = a² + b² + c² + 2ab + 2bc + 2ca}