1.

4x(5x - 3 ) - 3(5x -3 )?​

Answer»

ANSWER:

4x(5x - 3) - 3(5x - 3) \\  =  {20x}^{2}  - 12x - 15x + 9 \\  =  {20x}^{2}  - 27x + 9



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