Question

find the product of ( a+b)(a-2)(a²+4) by using properties.​

Answer 1

Answer:

Hope it helps you!!

Step-by-step explanation:

(a+b)(a-b)(a²+4)

=(a²-b²)(a²+4)

since, a²-b²=(a+b)(a-b)

=(a²-b²)(a²+4)

=a⁴+4a²-a²b²-4b²

=5a²-a²b²-4b²