Evaluate: (6 x ^ 4) (-4 x ^ 7)

Expression: $$( 6 x ^ { 4 } ) ( - 4 x ^ { 7 } )$$

To multiply powers of the same base, add their exponents. Add $4$ and $7$ to get $11$.

$$6x^{11}\left(-4\right)$$

Multiply $6$ and $-4$ to get $-24$.

$$-24x^{11}$$