The algebraic expression 2x2 - 32 is equal to __________ .
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 2(x + 4)(x - 4).
a2 - b2 = (a + b)(a - b)
Now,
2x2 - 32
= 2(x2 - 16)
= 2(x2 - 42)
= 2(x + 4)(x - 4)
Therefore, the required value is 2(x + 4)(x - 4).