Answer:
Step-by-step explanation:
the answer is C (i think)
hope it helped
x^2 +18x +80
= x^2 + 10x + 8x +80
= x(x+10) + 8(x+10)
= (x+10)(x+8)
Hope this help!
Good luck!
4
180
=216-(-83)+(-479)
=216+83-479
=299-479
=180
