How to solve Question number 18

Asked by guptashivpratap86 | 15th Feb, 2020, 08:49: PM

Expert Answer:

begin mathsize 16px style straight x squared space plus space 1 over straight x squared space equals space 66
rightwards double arrow open parentheses straight x minus 1 over straight x close parentheses squared space plus space 2 space equals space 66
rightwards double arrow open parentheses straight x minus 1 over straight x close parentheses squared space equals space 64
rightwards double arrow straight x minus 1 over straight x space equals space 8 space... space left parenthesis 1 right parenthesis
fraction numerator straight x squared plus space straight x space minus 1 over denominator straight x end fraction equals open parentheses straight x minus 1 over straight x space close parentheses plus space 1 equals 8 space plus space 1 space equals space 9
end style
Correct Option : A

Answered by Yasmeen Khan | 17th Feb, 2020, 11:51: AM