amalia90 amalia90
  • 04-02-2021
  • Mathematics
contestada

Make quadratic equation with :-5 and -4

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Qusaiqusau1089 Qusaiqusau1089
  • 04-02-2021
Simple 38487283847482828910101010101010010294587585858584839395848
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jimrgrant1 jimrgrant1
  • 04-02-2021

Answer:

x² + 9x + 20 = 0

Step-by-step explanation:

Given a solution x = - a for a quadratic equation then (x + a) is a factor

Here x = - 5 and x = - 4 , then corresponding factors are

(x + 5) and (x + 4)

The quadratic equation is then the product of its factors, that is

(x + 5)(x + 4) = 0 ← expand using FOIL

x² + 9x + 20 = 0

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