xxoarianna xxoarianna

20-03-2020
Mathematics

contestada

Find the value of x2 − 7x + 9 when x = 6.

The value of the expression when x = 6 is

Respuesta :

itzshiane itzshiane

20-03-2020

Answer:

-21.

Step-by-step explanation:

(6)2-7(6)+9

--> 6x2= 12

--> 7x6= 42

Rewrite the expression:

--> 12-42+9

Solve:

--> 12-42= -30

--> -30+7= -21

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