Question

Expand & simplify ( 3 x + 4 ) 2 + ( x + 7 ) ( x − 6 )

Answer 1

$(3x + 4)2 + (x + 7)(x - 6) \\ 6x + 8 + {x}^{2} \times 1 \\ = 6 {x}^{3} + 8$

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