Respuesta :
= 3x(2x^2 - 4x - 5) - 6(2x^2 - 4x - 5)
= 6x^3 - 12x^2 - 15x - 12x^2 + 24x + 30
= 6x^3 - 24x^2 + 9x + 30 (answer)
Answer:
6x³ -24x² - 9x + 30
Step-by-step explanation:
For the simplification of such equations, we use the VBODMAS method.
This means first we simplify V i.e. Vinculum or Bar
then B i.e. Brackets,
O i.e. order of exponent roots
D i.e. division
M i.e. multiplication
A i.e. addition
S i.e. subtraction
Now, solving given expression,
(3x - 6)(2x² - 4x - 5)
= 6x³ - 12x² - 15x -12x² + 24x + 30 { We mulplied both brackets term}
{ Also, xᵃ × xᵇ = xᵃ⁺ᵇ }
= 6x³ -24x² - 9x + 30
