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If -1 is a zero of the quadratic polynomial f(x)= x2- 7x -8 find the other zero

If -1 is a zero of the quadratic polynomial f(x)= x2- 7x -8 find the other zero
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5 votes
If -1 is a zero of the quadratic polynomial f(x)= x2- 7x -8 find the other zero

User Gnr
by
7.0k points

1 Answer

5 votes
x² - 7x - 8 = 0
You can use the Viet theorem
x₁ + x₂ = -p
-1 + x₂ = 7
x₂ = 7+1
x₂ = 8





User Jort
by
7.4k points
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