Answer:
8x^3-34x^2+25x-3
Step-by-step explanation:
multiply each term inside the parantheses with the terms in the other paranthesis:
4x*2x^2=8x^3
4x*-7x=-28x^2
4x*1=4x
2)now for the other term, -3
-3*2x^2=-6x^2
-3*-7x=21x
-3*1= -3
combine both terms
8x^3-28x^2+4x-6x^2+21x-3
8x^3-34x^2+25x-3
Hope this helps!
