Is this equation is quadratic equation : x3 – 2×2 + 4 = 0
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1 thought on “Is this equation is quadratic equation : x3 – 2×2 + 4 = 0<br />​”

1. Hi .

   here’s your answer.

   Step by step solution :

   STEP

   1

   :

   Equation at the end of step 1

   ((x3) – 2×2) – 4x = 0

   STEP

   2

   :

   STEP

   3

   :

   Pulling out like terms

   3.1 Pull out like factors :

   x3 – 2×2 – 4x = x • (x2 – 2x – 4)

   Trying to factor by splitting the middle term

   3.2 Factoring x2 – 2x – 4

   The first term is, x2 its coefficient is 1 .

   The middle term is, -2x its coefficient is -2 .

   The last term, “the constant”, is -4

   Step-1 : Multiply the coefficient of the first term by the constant 1 • -4 = -4

   Step-2 : Find two factors of -4 whose sum equals the coefficient of the middle term, which is -2 .

   -4 + 1 = -3

   -2 + 2 = 0

   -1 + 4 = 3

   Observation : No two such factors can be found !!

   Conclusion : Trinomial can not be factored.

   Hope it helped you.

   please mark this answer as brainiest.

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