Question

(x + 2) (x - 2) ( + 4)​

Answer 1

Answer:

2x+4

Step-by-step explanation:

+2 and - 2 cut, x and x =2x and for +4 we will put last that is 2x+4

Answer 2

Answer:

x = +2, -2

Step-by-step explanation:

We know that (a+b)(a-b) = a^2 - b^2

Therefore,

(x+2)(x-2)(4) = (x^2 - 2^2)(4)

                   = 4x^2 - 4(4) = 4x^2 -16

4x^2 - 16 = 0

4x^2 = 16

x^2 = 16/4

x = $\sqrt{4}$

x = +2, -2

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