Question

-1isazeroofthepolynomialf(x)=x 2 −7x−8,​

Answer 1

Answer:

"[Given, x 2 +7x−8=0]"

- x 2 +8x−x−8=0

- x(x+8)−1(x+8)=0

- (x+8)(x−1)=0

- x=−8,1

Answer 2

"" ❤️ Answer ❤️ ""

f(x) = x2 - 7x - 8

Let other zero be k, then

Sum of zeroes - 1 + k = -(-7 / 1) = 7

or, k = 8

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