Question

Continue product of (a+2)(a-2)(a^2+4)

Answer 1

Answer: a^4 – 16

Step-by-step explanation:

(a+2)*(a–2)*(a^2+4)

= a^2 –2a +2a –4*(a^2+4)

= (a^2–4)*(a^2+4)

= a^4+4a^2–4a^2–16

= a^4 – 16

Answer 2

Answer:


(a+2)(a-2)(a^2+4)

[(a)^2 - (2)^2][a^2 + 4] [ Using (a+b)(a-b) = a^2 - b^2 ]

(a^2 - 4)(a^2 + 4)

(a^2)^2 - (4)^2 [ Using (a+b)(a-b) = a^2 - b^2 ]

a^4 - 16