Respuesta :
Answer:
-8x³+18x²-12x+27
Step-by-step explanation:
-2x²-3(4x-9)
-2x² x 4x= -8x³
-2x² x -9=18x²
-3 x 4x= -12x
-3 x -9= 27
-8x³+18x²-12x+27
Answer:
-77 assuming you meant to write -2x^2+5x-8 instead of -2x^2+5-8
Step-by-step explanation:
You could multiply it out and see...
(-2x^2+5x-8)(4x-9)
(-2x^2)(4x-9)+(5x)(4x-9)+(-8)(4x-9)
-8x^3+18x^2+20x^2-45x-32x+72
-8x^3+38x^2-77x+72
Coefficient of x^3 is -8
Coefficient of x^2 is 38
Coefficient of x is -77
Constant term is 72
