Question

Write the quadratic equation in general form. What is the value of b2 - 4ac?
1 = 2x2 + 5x

Answer 1

Set one side to 0;

\(0 = 2x^2+5x-1\)

Answer 2

\(b^2-4ac\) is the discriminant; Here, a=2; b=5; c=-1.

Replace variables by their values;
\(5^2-4(2)(-1)\)

Answer 3

33?

Answer 4

25--8=25+8=33 yes :)