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Home Aptitude Square Root and Cube Root Comments

  • Question
  • The simplified form of (4x + 3)2 . (3x - 5) - (4x3 - 12x2 + 9x - 20) is


  • Options
  • A. 6x2- 48x - 50
  • B. 24x3 + 2x2 - 32x - 15
  • C. 44x3 + 4x2 - 102x - 25
  • D. 24x3 + 8x2 - 42x - 50

  • Correct Answer
  • 44x3 + 4x2 - 102x - 25 

  • Tags: AIEEE, Bank Exams, CAT

    Square Root and Cube Root problems


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    • 1. Which of the following numbers will have an irrational square root?

    • Options
    • A. 1024
    • B. 2401
    • C. 4096
    • D. 2048
    • Discuss
    • 2. Which of the numbers given below is the square root of 15376?

    • Options
    • A. 122
    • B. 124
    • C. 134
    • D. 128
    • Discuss
    • 3. Which of the numbers given below is the square root of 14161?

    • Options
    • A. 119
    • B. 121
    • C. 131
    • D. 141
    • Discuss
    • 4. Determine the value of 1r+1s when r3+s3=0 and r+s=6 ?

    • Options
    • A. 0
    • B. 0.5
    • C. 1
    • D. 2
    • Discuss
    • 5. What is the remainder, when 4x4 +10x3-20x2+90 is divided by (x+2) ?

    • Options
    • A. 0
    • B. -6
    • C. 45
    • D. 90
    • Discuss
    • 6. If x+1x=-2, then the value of x7+1x7

    • Options
    • A. 1
    • B. -1
    • C. 0
    • D. -2
    • Discuss
    • 7. 65.The angles of elevation of an aeroplane flying vertically above the ground, as observed from the two consecutive stones, 1 km apart; are 45o and 60o. The height of the aeroplane from the ground is

    • Options
    • A. 3+1 kms
    • B. 3+3 kms
    • C. 123+1 kms
    • D. 123+3 kms
    • Discuss
    • 8. The maximum value of 5+20x-4x2, when X is real number

    • Options
    • A. 1
    • B. 5
    • C. 25
    • D. 30
    • Discuss
    • 9. If 3a=4b=6c and a+b+c=279 then a2+b2+c2 is equal to

    • Options
    • A. 87
    • B. 39
    • C. 82
    • D. 83
    • Discuss
    • 10. Determine the value of 'x' when 3x3 = 27

    • Options
    • A. 1
    • B. 3
    • C. 9
    • D. 12
    • Discuss


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