What is the factored form of 8x2 + 12x?

The greatest common factor of 8x² and 12x is 4x. Factoring it out gives 8x² + 12x = 4x(2x + 3), which is choice B. Distributing confirms the result: 4x · 2x = 8x² and 4x · 3 = 12x.

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