anelog122106
anelog122106
01-09-2021
Mathematics
contestada
Factor f(x) = x2 + 3x − 4.
Respuesta :
mhanifa
mhanifa
01-09-2021
Answer:
(x - 1)(x + 4)
Step-by-step explanation:
Find zero's of function:
x² + 3x - 4 = 0
x = (-3 ± √(3² + 4*4))/2
x = (-3 ± √25)/2
x₁ = (-3 + 5)/2 = 1
x₂ = (-3 - 5)/2 = -4
The factors are:
x² + 3x - 4 = (x - 1)(x + 4)
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