Question

If 1 and -2 are the zeroes of polynomial xcube - 4 x square -7 x + 10 find its third zeroes

Answer 1

Answer:

then x =+5

Step-by-step explanation:

x=1orx=2

so x-1=0 ,x+2=0

(x-1)(x+2)=0

xsq+x-2=0

xcube-4xsq-7x+10÷xsq+x-2

then we get ans:- as x-5=0

so x=5