First, we will simplify the expression step by step.
Expanding (2.5x + 3)(4x - 1):
= 2.5x 4x + 2.5x (-1) + 3 4x + 3 (-1)= 10x^2 - 2.5x + 12x - 3= 10x^2 + 9.5x - 3
Now, expanding -2.5x(4x + 2):
= -2.5x 4x - 2.5x 2= -10x^2 - 5x
Therefore, the complete simplified expression is:
10x^2 + 9.5x - 3 - 10x^2 - 5x= 4.5x - 3
First, we will simplify the expression step by step.
Expanding (2.5x + 3)(4x - 1):
= 2.5x 4x + 2.5x (-1) + 3 4x + 3 (-1)
= 10x^2 - 2.5x + 12x - 3
= 10x^2 + 9.5x - 3
Now, expanding -2.5x(4x + 2):
= -2.5x 4x - 2.5x 2
= -10x^2 - 5x
Therefore, the complete simplified expression is:
10x^2 + 9.5x - 3 - 10x^2 - 5x
= 4.5x - 3