Question

6. The value of (x2 + 2)(x2 – 2) is-
(A) x2 - 4
(B) x4-4
(C) x4 + 2
(D) 4 - 2​

Answer 1

Answer:

A

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Answer 2

(a+b)(a-b) = a² - b²

(x²+ 2)(x² – 2) = (x²)² - 2²

= x⁴ - 4

Option (A) is the answer