Question

(5х+1)(5х-1)-(2-3х)(2+3х)=х(1+34x)​

Answer 1

Ответ:

(5(2)х-1(2))-(2(2)-3(2)х)=х(1+34х)

(25х^2-1)-(4-9х)=х+34х^2

34х^2-5=х+34х^2

х=-5