johnsonr441
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Factor f(x)=4x²-15x-25 and then use zero-product property to find the zeros of the quadratic function. Show all work (Will Mark Brainliest) [Pre Calculus]

Respuesta :

choixongdong
f(x)=4x²-15x-25
f(x)=(4x + 5)(x - 5)

zero-product property 
let f(x)=(4x + 5)(x - 5) = 0
so
(4x + 5)(x - 5) = 0
4x +5 = 0
4x = -5
  x = -5/4
  x = -1.25

x - 5 =0
x = 5

answer
factor: (4x + 5)(x - 5)
x = 5 and x = -1.25

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