CBSE Class 9 Answered
Q-12
The polynomial
Asked by kishor.kp14 | 18 Jun, 2019, 11:25: AM
Expert Answer
p(x) = ax3 - 3x2 + 4 is divided by (x - 2), then p is the remainder.
→ f(2) = p
→ a(2)3 - 3(2)2 + 4 = p
→ 8a - 12 + 4 = p
→ 8a - 8 = p ... (i)
g(x) = 2x3 - 5x + a is divided by (x - 3), then q is the remainder.
→ g(3) = q
→ 2(3)3 - 5(3) + a = q
→ 54 - 15 + a = q
→ 39 + a = q .... (ii)
p - 2q = 4 .... given
→ 8a - 8 - 2(39 + a) = 4 .... from (i) and (ii)
→ 8a - 8 - 78 - 2a = 4
→ 6a - 86 = 4
→ 6a = 90
→ a = 15
Answered by Yasmeen Khan | 18 Jun, 2019, 11:37: AM
Application Videos
Concept Videos
CBSE 9 - Maths
Asked by palakbajwa21 | 24 May, 2023, 07:41: PM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by 1987daljeetkaur | 22 May, 2023, 11:54: AM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by shivalaxmi0205 | 21 Feb, 2023, 07:26: PM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by anikk659 | 08 Jan, 2023, 03:41: PM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by yeshudarsh | 05 Jul, 2022, 06:38: PM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by meghapatel29121998 | 23 Jun, 2022, 10:08: PM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by Chaitanyamburande | 08 May, 2022, 11:43: AM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by abdulsamad82007 | 26 Jun, 2021, 02:24: PM
ANSWERED BY EXPERT