Let's solve for x.
−b3+3b2+8−x−5b2−9=5b3+852+17
Step 1: Add b^3 to both sides.
−b3−2b2−x−1+b3=5b3+869+b3
−2b2−x−1=6b3+869
Step 2: Add 2b^2 to both sides.
−2b2−x−1+2b2=6b3+869+2b2
−x−1=6b3+2b2+869
Step 3: Add 1 to both sides.
−x−1+1=6b3+2b2+869+1
−x=6b3+2b2+870
Step 4: Divide both sides by -1.
−x
−1
=
6b3+2b2+870
−1
x=−6b3−2b2−870
Answer:
x=−6b3−2b2−870