Simplify:

left bracket, 10, x, to the power 5 , right bracket, left bracket, 4, x, cubed, right bracket
(10x
5
)(4x
3
)

To simplify the expression, we can multiply the coefficients together and add the exponents of the variable:

(10x^5)(4x^3) = 10*4*x^5*x^3 = 40x^(5+3) = 40x^8