Question
Two times a number, added to the square of that number,
gives 3. What could be the possible answer for this number?Solution
Let the number be x. According to question, ⇒ 2x + x2 = 3 ⇒ x2 + 2x – 3 = 0 ⇒ x2 – x + 3x – 3 = 0 ⇒ (x – 1)(x + 3) = 0 ⇒ x = 1, -3
More Square & square root Questions
120, 136, 111, 147, ?, 162
37, 49, 63, ?, 97, 117
43          86          258        ?             5160                     30960
...- What will come in place of the question mark (?) in the following series?
-5, -2, ?, 10, 19, 30 What will come in place of the question mark (?) in the following series?
225, 227, 233, 245, 265, ?
Choose the missing term.
R, U, X, A, D,?
-1, 5, 23, 59, ?
63 131 267 ? 1083 2171
What will come in place of the question mark (?) in the following series?
16, ?, 480, 1920, 5760, 11520321, 240, ?, 105, 51, 6
