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Mathematics 8 Online
OpenStudy (mimi_x3):

Can you please help me with this maths question 1. Let P(x) = (x+1)(x-3)Q(x)+a(x+1)+b , where Q(x) is a polynomial and a and b are real numbers When P(x) is divided by (x+1) the remainder is -11. When P(x) is divided by (x-3) the remainder is 1. (i) What is the value of b? (ii) What is the remainder when P(x) is divided by (x+1)(x-3) ?

OpenStudy (anonymous):

you want complete solution or jst answer

OpenStudy (mimi_x3):

complete solution please xD

OpenStudy (anonymous):

ok

OpenStudy (saifoo.khan):

u helping?

OpenStudy (anonymous):

p(-1)=b but r=-11 therfore b=-11

OpenStudy (anonymous):

now find a

OpenStudy (anonymous):

p(3)=4a+b b=-11 and R=1 1=4a-11 4a=12 a=3

OpenStudy (mimi_x3):

thanks (:

OpenStudy (anonymous):

II)R=-11

OpenStudy (anonymous):

no problem

OpenStudy (mimi_x3):

reason for r = -11

OpenStudy (anonymous):

because R1xR2 R1=-11 R2=1 R=-11

OpenStudy (mimi_x3):

ohh yeah , thanks (:

OpenStudy (mimi_x3):

nahh

OpenStudy (anonymous):

ok

OpenStudy (mimi_x3):

Hashir , btw the answer for (ii) is 3x-8 xD

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