Question

Factors of x² -4 is
options are here
a) (x+2) (x+2)
b) (x -4) (x +4 )
c) (x - 2) (x+2)
d) is down
$(x - 2) {}^{2}$


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Answer 1

Answer:

X^2 - 4

( X^2 - 2^2)

➡️From (a^2-b^2)identity

➡️(a^2-b^2)=(a+b)(a-b)

====>(X+2)(x-2)<====

So your option is c

Here is your answer mate

❣️❣️❣️

Answer 2

Answer:

c) (x - 2)(x + 2)

Step-by-step explanation:

Given : x² - 4

We can write this as :

→ (x)² - (2)²

• Identity : a² - b² = (a - b)(a + b)

Here, a = x, b = 2

→ (x - 2)(x + 2)

Hence, the answer is c) (x - 2)(x + 2).

Other identities which are frequently used :

• (a + b)² = a² + b² + 2ab

• (a - b)² = a² + b² - 2ab

• (a + b)² - (a - b)² = 4ab