Question

Expand and simplify the following (2 x – 4)(2x + 4)
give full explanation ​

Answer 1

Answer:

4x^2-16

Step-by-step explanation:

(a+b) (a-b) = a^2- b^2

Answer 2

Answer: $2x^{2}$ -16

Step-by-step explanation:

(a+b)(a-b) = $a^{2} -b^{2}$

so,  (2x-4)(2x+4) = $(2x)^{2} - (4)^{2}$

                          =$2x^{2} -16$ Answer

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