Question

Expand : ( 2 − q/5 − 3)( 2 + q/5 + 3)

Answer 1

Answer:

Annyeong!!

I have given the answer in the attachment

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Borahae!!

Answer 2

Answer:

4 - q²/16

Step-by-step explanation:

(a+b)(a-b)= a² - b²

In The numerator:

a= 2

b= q

(2-q)(2+q)= 2² - q²

               = 4 - q²

In The Denominator:

a= 5

b= 3

(5+3)(5-3)= 5² - 3²

               = 25-9

               = 16

∴ ( 2 − q/5 − 3)( 2 + q/5 + 3)= 4 - q²/16