cupcake2567 cupcake2567
  • 22-10-2019
  • Mathematics
contestada

if 2x - 21x+27 - (2x - 3)(x - 9), which equation() should be solved to find
the roots of 2x - 21x+ 27 ? Check all that apply.

Respuesta :

kudzordzifrancis
kudzordzifrancis kudzordzifrancis
  • 25-10-2019

Answer:

A. [tex]x-9=0[/tex]

B. [tex]2x-3=0[/tex]

Step-by-step explanation:

The given equation is: [tex]2x^2-21x+27=(2x-3)(x-9)[/tex]

The right hand side is the factored form of the left hand side.

Since the quadratic trinomial has been expressed in the factored form for us, we apply the zero product principle to obtain:

[tex]2x-3=0[/tex] or [tex]x-9=0[/tex]

Therefore the correct options are A and C

See attachment for the complete question

Ver imagen kudzordzifrancis
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