Question

Find the value of k. if (r-1) in the factor af p(x) = kx² - 3r +k​

Answer 1

Answer:

Step-by-step explanation:

(i) x  

2

+x+k=0⇒(1)  

2

+1+k=0⇒1+1+k=0⇒k=−2

(ii) 2x  

2

+kx+  

2

​  

=0⇒2(1)  

2

+k(1)+  

2

​  

=0⇒2+k+  

2

​  

=0⇒k=−2−  

2

​  

 

(iii) kx  

2

−  

2

​  

x+1=0⇒k(1)  

2

−  

2

​  

(1)+1=0⇒k−  

2

​  

+1=0⇒k=  

2

​  

−1

(iv) kx  

2

−3x+k=0⇒k(1)  

2

−3(1)+k=0⇒k−3+k=0⇒2k=−3⇒k=−  

2

3

​