(х+6)^2-(х-5)(х+5)=79

Question

(х+6)^2-(х-5)(х+5)=79

Answer 1

x^2+36+12x-x^2+25=79

12x=79-36-25

12x=18

x=18/12

x=1.5

 

 

 

 

 

 

 

 

Answer 2

(х+6)^2-(х-5)(х+5)=79   х²+12х+36-х²+25=79  12х=18  х=1,5