Question

) 5. Решите уравнение: |4х²+ 4х|– 1 = 0 ​

Answer 1

1) 4х²+4х=-1; ) 4х²+4х+1=0; х²+х+1/4=0; (х+(1/2))²=0⇒х=-1/2

2)4х²+4х=1; ) 4х²+4х-1=0; х²+х-1/4=0; х=((-1/2)±(√(1/2))