Question

full solution send kro bro​

Answer 1

see the attachment mate

Answer 2

Answer:

9.61a²- 0.25

Step-by-step explanation:

(3.1a - 0.5)(3.1a +0.5)

= (3.1a)² - 0.5² {As we know (a+b)(a-b)=a²-b²}

= 9.61a²- 0.25 (ANSWERS)

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