1.

1). 32). 53). 64). 7

Answer»

From the equation,

Dividend = DIVISOR × QUOTIENT + Remainder

Here, Dividend = x2 + 6

Divisor = 4

Remainder = 3

Quotient = 7

⇒ x2 + 6 = 4 × 7 + 3

⇒ x2 + 6 = 28 + 3

⇒ x2 = 31 – 6 = 25

∴ x = 5



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