Question

Simplify (a²+12) (b²+12)+144

Answer 1

Answer:

288 + 12a² + 12b² + a²b²

Step-by-step explanation:

Using identity IV

( x + a ) ( x + b )

= x² + ( a + b )x + ab

x ⇒ 12

a ⇒ a²

b ⇒ b²

(12)² + ( a² + b² )12 + (a²)(b²) + 144

144 + 12a² + 12b² + a²b² + 144

288 + 12a² + 12b² + a²b²