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CBSE Class 9 Answered

Polynomials bx^2 + x + 5 and bx^3-2x+5 are divided by polynomial x-3 and the remainders are m and n respectively. If m - n = 0 then find the value of b. 
Asked by vasant | 30 Sep, 2018, 04:00: PM
answered-by-expert Expert Answer
According to the question,
b × 32 + 3 + 5 = m
9b + 8 = m
Also
b × 33 - 2 × 3 + 5 = n
27b - 1 = n
m - n = 0
9b + 8 - (27b - 1) = 0
9b - 27b + 8 + 1 = 0
-18b + 9 = 0
b = 1/2
Answered by Sneha shidid | 01 Oct, 2018, 11:49: AM

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