Answer: 54x - 20x^2 - 128
Step-by-step explanation: (7*2+5x+7) (4x-6)
= (14+5x+7) (4x-6)
= (21 + 5x) (4x - 6)
= 21(4x-6) +5x(4x-6)
= 84x - 128 + 20x^2 - 30x
= 84x -30x -20x^2 -128
= 54x - 20x^2 - 128
hope it helps you!!!!!!!!!!
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