Question

solve this please fast






I will mark brelenest




When a number is divided by 7, it gives a remainder of 5. What will be the remainder if the square of

that number is divided by 7?







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Answer 1

Answer:

Hello

Step-by-step explanation:

Let the number is (5x+3)

Then according to the question

⇒5(5x+3)2

⇒525x2+30x+9

⇒525x2+530x+55+4

⇒55(5x2+6x+1)+54

∴reminder=4

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