Question 3. Check whether 7 + 3x is a factor of 3x3 + 7x Chapter 2: Polynomial Maths Class 9 solutions are developed for assisting understudies with working on their score and increase knowledge of the subjects. Question 3. Check whether 7 + 3x is a factor of 3x3 + 7x is solved by our expert teachers. You can get ncert solutions and notes for class 9 chapter 2 absolutely free. NCERT Solutions for class 9 Maths Chapter 2: Polynomial is very essencial for getting good marks in CBSE Board examinations
Question 3. Check whether 7 + 3x is a factor of 3x3 + 7x
Solution: Apply remainder theorem
=>7 + 3x =0
=> 3x = - 7
=> x = - 7/3
Replace x by - 7/3 we get
=>3x3 + 7x
=>3(-7/3)3 + 7(-7/3)
=>3(-343/27) – 49/3
=> (-343/9) – 49/3
This value is not equal to 0
So that 7 + 3x is not a factor of expression 3x3 + 7x
Copyright @ ncerthelp.com A free educational website for CBSE, ICSE and UP board.
