Question

Решите уравнение;
1) 16c^2 - 49=0
2) (4x-3) (4x+3) - (4x-1) ^2 =3x

Answer 1

1) 16с^2=49
с^2=49/16
с1=7/4
с2=-7/4
2) 16х^2-9-16х^2+1=3х
-8=3х
х=-8/3