Question

if -1 is a zero of f(x)=x^2-7x-8, then find the other zero.

Answer 1

Hi friend, Here is the required answer :-

f(x) = x²-7x-8
To find the zeroes of the polynomial -
x²-7x-8=0
x²-8x+x-8=0
x(x-8)+1(x-8)=0
(x+1)(x-8)=0

So, x= - 1 & 8.

Hope this helps you...
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Answer 2

i hope this will useful to u