Question

If 1 and (-2) are the two zeros the polynomial (x cube - 4 x square - 7x + 10) Find its third zero.

Answer 1

Hey mate !!

Here's your answer !!

Refer to the attachment !!

Hope it helps !!

Cheers !!

Answer 2

hey dude....!
look..here is ur answer...!☺☺

(x-1)(x+2)=0
x square plus 2x -x-2=0
x square plus x -2 ....................1


Now divide p(x) with 1 

Now u will get x-5 as quotient 
so third zero will be 5.

thanks...!