Question

pls solve this question ​

Answer 1

Answer:

Wood is a bad conductor of electricity. Rest are good conductors of

electricity.

Answer 2

Answer:

i) x+3 = 0

x = -3

ii) (x+1)(x+2)=0.

x= -1,-2

iii) x^2-2x-x+2

x(x-2)-(x-2)

(x-1)(x-2)

x= 1,2

iv) 2x+1=0

x= -1/2

v) (x+3)(x-3)

x= -3,3