Question

Решите уравнения :
1 + 4y² = 0

4x² − 3x = 0

−5x² + 7x = 0

Answer 1

1+4у²=0
4у²=-1
у²=-14
у=-√14
у=-12


4х²+3х=0
х(4х+3)=0
х=0или 4х+3=0
4х=-3
х=-34



-5х²+7х=0
х(5х+7)=0
х=о или 5х+7=0
х=-75

Answer 2

1+4y^2=0
4y^2=-1
y^2= -1/4
y= 1/2

4x^2 -3x=0
x (4x-3)=0
x=0 4x=3
x= 3/4

-5x^2 +7x=0
x (5x+7)=0
x=0 5x+7=0
5x=-7
x= -7/5