Hey there!

The formula for the discriminant is represented by b²-4ac.
We need to identify the values for a, b, and c.
This equation is in general form, which is ax² + bx + c = 0.
So, a = -2, b = -1, and c = -1.
Plug the values into the formula.
(-1)²-4(-2)(-1)
Square.
1-4(-2)(-1)
Multiply.
1-4(2)
1-8
Subtract.
-7
The discriminant is -7.
This means there are no real solutions to the equation, because the discriminant is negative.
Hope this helps!
Lemonade may come from medieval Egypt. Although the lemon comes from farther to the east, amd lemonade may have been invented in one of these eastern countries. But the earliest written evidence of lemonade comes from Egypt.
I’m pretty sure it’s 2 i’m not 100% sure though.
At the age of 40 in 610 CE, Muhammad is said to have received his first verbal revelation in the cave called Hira, which was the beginning of the descent of the Quran that continued up to the end of his life; and Muslims hold that Muhammad was asked by God to preach the oneness of God in order to stamp out idolatry,