Practice problem
Find ab2−4(b+2a2)\dfrac{a}{b^2-4} \left(\dfrac{b+2}{a^2}\right)b2−4a(a2b+2) in simplest form.
1ab−2\frac{1}{ab-2}ab−21
1a(b+2)\frac{1}{a(b+2)}a(b+2)1
1b−2\frac{1}{b-2}b−21
1a(b−2)\frac{1}{a(b-2)}a(b−2)1
Type a concept, like “slope” or “photosynthesis”.
