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Hassan writes an algebraic expression with four terms. The x-term has a coefficient of 2, and the z-term has a coefficient of -1. The expression has a constant term less than zero. Which expression could he have written?

A. 2x + z + 5 - 6z^2

B. 2x - z - 5 + 2z^2

C. -2x - z - 5 + 2z^2

D. -2x + z - 5 + 2z^2

Respuesta :

carlosego
We will write the expression step by step according to what the problem poses.
 We have then:
 The x-term has a coefficient of 2:
 [tex]2x [/tex]
 the z-term has a coefficient of -1:
 [tex]2x - z [/tex]
 The expression has a constant term less than zero:
 [tex]2x - z - 5 [/tex]
 Then, the complete expression is:
 [tex]2x - z - 5 + 2z ^ 2 [/tex]
 Answer:
 B. 2x - z - 5 + 2z ^ 2