Railways Exam  >  Railways Questions  >  If log10 (x2 – 6x + 45) = 2, then the v... Start Learning for Free
If log10 (x2 – 6x + 45) = 2, then the value of x will be—
  • a)
    10, 5
  • b)
    11, –5
  • c)
    6, 9
  • d)
    9, –5
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
If log10 (x2 – 6x + 45) = 2, then the value of x will be—a...
 log10 (x2 – 6x + 45) = 2
⇒ x2 – 6x + 45 = 102 = 100
⇒ x2 – 6x – 55 = 0
⇒ (x – 11) (x + 5) = 0
∴ x = 11, – 5
View all questions of this test
Most Upvoted Answer
If log10 (x2 – 6x + 45) = 2, then the value of x will be—a...
It appears that your question is incomplete. Please provide the full expression so that I can assist you further.
Explore Courses for Railways exam
Question Description
If log10 (x2 – 6x + 45) = 2, then the value of x will be—a)10, 5b)11, –5c)6, 9d)9, –5Correct answer is option 'B'. Can you explain this answer? for Railways 2025 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about If log10 (x2 – 6x + 45) = 2, then the value of x will be—a)10, 5b)11, –5c)6, 9d)9, –5Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Railways 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If log10 (x2 – 6x + 45) = 2, then the value of x will be—a)10, 5b)11, –5c)6, 9d)9, –5Correct answer is option 'B'. Can you explain this answer?.
Solutions for If log10 (x2 – 6x + 45) = 2, then the value of x will be—a)10, 5b)11, –5c)6, 9d)9, –5Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Railways. Download more important topics, notes, lectures and mock test series for Railways Exam by signing up for free.
Here you can find the meaning of If log10 (x2 – 6x + 45) = 2, then the value of x will be—a)10, 5b)11, –5c)6, 9d)9, –5Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of If log10 (x2 – 6x + 45) = 2, then the value of x will be—a)10, 5b)11, –5c)6, 9d)9, –5Correct answer is option 'B'. Can you explain this answer?, a detailed solution for If log10 (x2 – 6x + 45) = 2, then the value of x will be—a)10, 5b)11, –5c)6, 9d)9, –5Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of If log10 (x2 – 6x + 45) = 2, then the value of x will be—a)10, 5b)11, –5c)6, 9d)9, –5Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice If log10 (x2 – 6x + 45) = 2, then the value of x will be—a)10, 5b)11, –5c)6, 9d)9, –5Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Railways tests.
Explore Courses for Railways exam
Signup to solve all Doubts
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev