denver2018 wrote:

hi guys

if x is a positive integer, is y^2(x^3-x+1)>75?

1)y>1

2)(x-1)^2=16

OA is C

but the equation (x-1)^2= 16 equal to x-1=4 ====> x=5

what about the negative sign? here does the equation x-1)^2=16 has 2 solutions or just one which is x-1=4 ====> x=5

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*************************************************

If x is a positive integer, is y^2(x^3-x+1)>75?

1)y>1

2)(x-1)^2=16

OA is C

but the equation (x-1)^2= 16 equal to x-1=4 ====> x=5

what about the negative sign? here does the equation x-1)^2=16 has 2 solutions or just one which is x-1=4 ====> x=5

**************************************************

Please post this again in the appropriate forum.

Thread locked.

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