Question

simplify

8x × 4x² × (-21x³)​

Answer 1

Answer:

$- 672 {x}^{6}$

Step-by-step explanation:

$8x \times 4 {x}^{2} \times ( - 21 {x}^{3} ) \\ = 32 {x}^{3} \times ( - 21 {x}^{3} ) \\ = - 672 {x}^{6}$

Answer 2

Answer:

$-672x^{6}$

Step-by-step explanation:

$8.4.(-21)(x.x^{2} .x^{3} )$

applying law of exponent

$a^{m} .a^{n} =a^{m+n}$

$-672x^{6}$