Example 7 - Chapter 2 Class 9 Polynomials
Last updated at August 13, 2026 by Teachoo
Examples
Example 1 (i)
You are here
You are here
Transcript
Example 7 Find the value of k, if š„ā1 is a factor of 4š„^3+3š„^2ā4š„+š Finding remainder when šš^š+šš^šāšš+š is divided by x ā 1 Step 1: Putting Divisor = 0 x ā 1 = 0 x = 1 Step 2: Let š(š„) = 4š„^3+3š„^2ā4š„+š Putting x = 1 š(š) = 4ć(š)ć^3+3ć(š)ć^2ā 4(š)+š Dividend Divisor = 4+3ā 4+š = š+š Thus, Remainder = š(1) = 3+š Step 3: Since š„ ā 1 is a factor of 4š„^3+3š„^2ā4š„+š ā“ š(š) = 0 3+š = 0 k = ā3 Thus, k = āš
