Respuesta :
Answer:
a^3−a^2−16a+16
Step-by-step explanation:
rewrite the equation as this:
a * a^2
a * -5a
a * 4
4 * a^2
4 * -5a
4 * 4
Now solve them:
a * a^2 = a^3
a * -5a = -5a^2
a * 4 = 4a
4 * a^2 = 4a^2
4 * -5a = -20a
4 * 4 = 16
Now you can write them in an equation:
a^3 - 5a^2 + 4a + 4a^2 - 20a + 16
Rearrange and simplify:
a^3−a^2−16a+16
Hope this helps!
