P(x) is a polynomial of degree …

CBSE, JEE, NEET, CUET
Question Bank, Mock Tests, Exam Papers
NCERT Solutions, Sample Papers, Notes, Videos
Related Questions
Posted by Vanshika Bhatnagar 1 year, 4 months ago
- 2 answers
Posted by Parinith Gowda Ms 3 months, 2 weeks ago
- 0 answers
Posted by Kanika . 1 month ago
- 1 answers
Posted by Hari Anand 6 months, 1 week ago
- 0 answers
Posted by Lakshay Kumar 1 year, 1 month ago
- 0 answers
Posted by Parinith Gowda Ms 3 months, 2 weeks ago
- 1 answers
Posted by Sahil Sahil 1 year, 4 months ago
- 2 answers

myCBSEguide
Trusted by 1 Crore+ Students

Test Generator
Create papers online. It's FREE.

CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
myCBSEguide
Prabjeet Singh 7 years, 5 months ago
{tex}\text {Let when } p(x) \text { is divided by } (x-2)(x-3) \text { it leaves a remainder } (ax-b) \text { quotient } g(x),{/tex}
{tex}\therefore p(x) = (x-2)(x-3)g(x)+(ax+b){/tex} {tex}...(1){/tex}
{tex}\text {Now, when } p(x) \text {is divided by } (x-2) \text {it leaves a remainder 1,}{/tex}
{tex}\therefore \text {putting value } x=2 \text { in eqn. (1), we get}{/tex}
{tex}p(2) = (2-2)(2-3)g(2)+[a(2)+b]{/tex}
{tex}\Rightarrow 1 = 0+2a+b{/tex}
{tex}\Rightarrow 2a+b=1{/tex} {tex}...(2){/tex}
{tex}\text {And, when } p(x) \text { is divided by } (x-3) \text { it leaves a remainder 3},{/tex}
{tex}\therefore \text { putting value } x = 3 \text { in eqn. (1), we get}{/tex}
{tex}p(3) = (3-2)(3-3)g(3)+[a(3)+b]{/tex}
{tex}\Rightarrow 3 = 0 + 3a +b{/tex}
{tex}\Rightarrow 3a+b=3{/tex} {tex}...(3){/tex}
{tex}\text {On solving, eqn. (2) and (3), we get}{/tex}
{tex}a=2 \text { and } b = -3{/tex}
{tex}\text {Putting values of } a \text { and } b \text { in eqn. (1), we get}{/tex}
{tex}p(x) = (x-2)(x-3)+(2x-3){/tex}
{tex}\text {Thus, the required remainder is }(2x-3).{/tex}
0Thank You