Answer:
x^3-x^2-22x+10
Step-by-step explanation:
To multiply the polynomials, we can expand it by using the distributive property.
So we have:
x(x^2)+x(4x)+x(-2)+(-5)(x^2)+(-5)(4x)+(-5)(-2)
Simplifying, we get
x^3+4x^2-2x-5x^2-20x+10
Combining like terms, we get
x^3-x^2-22x+10
So (x-5)(x^2+4x-2) = x^3-x^2-22x+10.
