4+(7/x)=(1/-x^2)

4+7/x = -1/x^2

Multiplying throughout by x^2

4x^{2}+7x +1 =0

(2x)^{2}+2*(2x)*7/4 +(7/4)^{2} =-1+49/16 =33/16

(2x+7/4)^{2 }= (√33/4)^{2}

(2x+7/4) = ± (√33)/4

2x = -7/4 ± (√33)/4

x = -7/8 ± (√33)/8

Secure Information

Content will be erased after question is completed.

Enter the email address associated with your account, and we will email you a link to reset your password.

Forgot your password?

Sign Up