Question

Which of the following is zero?
1 X 10
(0 +1) /3
(3 - 3)/3
3 + 0​

Answer 1

Answer:

i)  

x−  

x

1

​

=3

⇒x  

2

−3x−1=0

⇒x=  

2a

−b±  

b  

2

−4ac

​

 

​

 

⇒a=1,b=−3,c=−1

⇒x=  

2

3±  

9+4

​

 

​

 

⇒x=  

2

3±  

13

​

 

​

 

ii)  

(x+4)

1

​

−  

(x−7)

1

​

=  

30

11

​

 

⇒  

(x+4)(x−7)

(x−7−x−4)

​

=  

30

11

​

 

⇒  

(x+4)(x−7)

−11

​

=  

30

11

​

 

⇒−30=x  

2

−3x−28

⇒x  

2

−3x+2=0

⇒x  

2

−2x−x+2=0

⇒x(x−2)−1(x−2)=0

⇒(x−2)(x−1)=0

⇒x=1,2

Step-by-step explanation: