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Saturday, 31 October

JEE Main 2024 · MathsNumerical answerNumerical valueMediumApplication

JEE Main 5 April 2024, Shift 1, Maths Q22

Question 22 of 90 in this shift, Maths question 22 of 30, Section B.

The number of distinct real roots of the equation ∣x∣∣x+2∣−5∣x+1∣−1=0|x||x+2|-5|x+1|-1=0 is ________.

Official answer

3

NTA final key.

Same idea in other shifts

Asked 12× in all
  1. 8 Apr 2025, Shift 2 · Q2The sum of the squares of the roots of ∣x−2∣2+∣x−2∣−2=0|x-2|^2 + |x-2| - 2 = 0 and the squares of the roots of x2−2∣x−3∣−5=0x^2 - 2|x-3| - 5 = 0, isMediumSingle correct
  2. 8 Apr 2024, Shift 2 · Q21The number of distinct real roots of the equation ∣x+1∣ ∣x+3∣−4∣x+2∣+5=0|x+1|\,|x+3| - 4|x+2| + 5 = 0, is ________MediumNumerical value
  3. 30 Jan 2024, Shift 2 · Q22The number of real solutions of the equation x(x2+3∣x∣+5∣x−1∣+6∣x−2∣)=0x\left(x^2 + 3|x| + 5|x-1| + 6|x-2|\right) = 0 is ________.MediumNumerical value
  4. 8 Apr 2023, Shift 2 · Q22Let mm and nn be the numbers of real roots of the quadratic equations x2−12x+[x]+31=0x^2 - 12x + [x] + 31 = 0 and x2−5∣x+2∣−4=0x^2 - 5|x + 2| - 4 = 0…HardNumerical value
  5. 13 Apr 2023, Shift 1 · Q2The set of all a∈Ra \in \mathbb{R} for which the equation x∣x−1∣+∣x+2∣+a=0x|x-1|+|x+2|+a=0 has exactly one real root, isHardSingle correct
  6. 15 Apr 2023, Shift 1 · Q2The number of real roots of the equation x∣x∣−5∣x+2∣+6=0x|x|-5|x+2|+6=0, isMediumSingle correct
  7. 30 Jul 2022, Shift 2 · Q81The number of solutions of the equation ∣x2+3x+2∣+∣x+5∣−2=0|x^2 + 3x + 2| + |x + 5| - 2 = 0, x∈Rx \in \mathbb{R}, is ________.MediumNumerical value
  8. 24 Feb 2021, Shift 2 · Q90The number of the real roots of the equation (x+1)2+∣x−5∣=274(x+1)^2+|x-5|=\frac{27}{4} is ________.MediumNumerical value

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.