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Mathematics 17 Online
OpenStudy (anonymous):

Help!!! Which value for x makes the open sentence true? 9 • 8 – 2x + x2 ≥ x3 + x2 A.7 B.6 C.5 D.4

OpenStudy (anonymous):

72 - 2x + 2x ≥ x^3 + x^2 ?

OpenStudy (anonymous):

9 • 8 – 2x + x2 ≥ x3 + x2

OpenStudy (anonymous):

ok,i see :D but is it 3x or x^3?

OpenStudy (anonymous):

x3

OpenStudy (anonymous):

wait

OpenStudy (anonymous):

so it's not x^3?

OpenStudy (anonymous):

2x + x(to the 2 power) ≥ x(to the 3 power ) + x( to the 2 power )

OpenStudy (anonymous):

so is this true? 2x + x^2 ≥ x^3 + x^2

OpenStudy (anonymous):

yeah

OpenStudy (anonymous):

sorry about that

OpenStudy (anonymous):

we have x^2 in both sides so we can cross out it :) 2x ≥ x^3

OpenStudy (anonymous):

do you have MC?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

you know only 0 and 1 is correct :)

OpenStudy (anonymous):

2x0 ≥ 0^3 2x1 ≥ 1^3

OpenStudy (anonymous):

and all the negative numbers are true too,however -1 is just false: -1x2 , -1^3

OpenStudy (anonymous):

so this is the answer: \[answers = 1,0,-2,-3,... \]

OpenStudy (anonymous):

ok?

OpenStudy (anonymous):

?? thats not one of the answers on my page

OpenStudy (anonymous):

what is MC?

OpenStudy (anonymous):

what answers do you have?

OpenStudy (anonymous):

A.7 B.6 C.5 D.4

OpenStudy (anonymous):

but this question doesn't have a single answers and those answers are false!

OpenStudy (anonymous):

um ok then

OpenStudy (anonymous):

its on a test for school?!

OpenStudy (anonymous):

but i'm sure those answers are false.

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