Let's solve for f.forx(0.4)5(2x+5)−4=1Step 1: Add 4 to both sides.0.16forx2+25forx−4+4=1+40.16forx2+25forx=5Step 2: Factor out variable f.f(0.8orx2+2orx5)=5Step 3: Divide both sides by (0.8orx^2+2orx)/5.f(0.8orx2+2orx5)0.8orx2+2orx5=50.8orx2+2orx5f=250.8orx2+2orxAnswer:f=250.8orx2+2orx
