Which expression is equivalent to (9x^2+2x-7)(x-4) A). x(9x^2+2x-7)-4
B). -4x(9x^2+2x-7)
C). (9x^2+2x-7)(x)+(9x^2+2x-7)(-4)
D). x(9x^2+2x-7)+4(9x^2+2x-7)

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