Question

Algebra Help!!!
determine the discriminant of the equation. How many real solutions does it have? x^2-5x+7=0?

Answer 1

always use the equation b^2 - 4ac
x²-5x+7=0
therefore a=1 b=-5 c=7

therefore the answer would be
(-5)²-4(1)(7)
=25-28
=-3
the answer is -3

Answer 2

Hope this helps :)

Answer 3

thank you

Answer 4

medals please

Answer 5

thanx

Answer 6

would you mind helping me on another one

Answer 7

what are the solutions?\[\frac{ 1 }{ 2 }x^{2}+2x+3=0\]

Answer 8

ok hang on a second

Answer 9

1/2x²+2x+3=0
2(1/2x²+2x+3)=0*2
x²+4x+6=0
x²+4x=-6 【(4/2)²=4】


x²+4x+4=-6+4 【completing the square】
（x+2）*（x+2） =-2
(x+2)² =-2
x=（+√-2）-2
x=(-√-2)-2

Answer 10

thank you!

Answer 11

its okay i hope you understand it that is important to you :)