Question

(0,1x³+2,5z)(0,1x³-2,5z)

Answer 1

$0.1 {x}^{8} - 6.25 {z}^{2}$

Answer 2

To expand this expression, we can use the FOIL method (First, Outer, Inner, Last):

(0,1x³+2,5z)(0,1x³-2,5z) = 0,1x³ * 0,1x³ + 0,1x³ * (-2,5z) + 2,5z * 0,1x³ + 2,5z * (-2,5z)

Simplifying each term, we get:

= 0,01x^6 - 0,25x³z + 0,25x³z - 6,25z²

Combining like terms, we can simplify further:

= 0,01x^6 - 6,25z²

Therefore, (0,1x³+2,5z)(0,1x³-2,5z) = 0,01x^6 - 6,25z².