General Form of Quadratic Equation
General form of a quadratic equation is
ax2 + bx + c = 0
where a, b, and c are constants and a≠0.
*Note that the highest power of an unknown of a quadratic equation is 2.
General form of a quadratic equation is
ax2 + bx + c = 0
where a, b, and c are constants and a≠0.
*Note that the highest power of an unknown of a quadratic equation is 2.
Example (Find the values of a, b and c)
Rewrite the following into the general form of a quadratic equation. Find the values of a, b, and c.
(a) (3x − 5)2 = 0
(b) (x – 8)(x + 8) = 10
Rewrite the following into the general form of a quadratic equation. Find the values of a, b, and c.
(a) (3x − 5)2 = 0
(b) (x – 8)(x + 8) = 10
Solution
(c)
n−1n+1=3n+1n−1=(3n+1)(n+1)n−1=3n2+3n+n+10=3n2+4n+1−n+13n2+3n+2=0a=3, b=3, c=2
c）4n-n=3n
1+1=2
a=3 b=3 c=2
right？
Dear Aini,
Thanks for pointing out our mistake.
Correction was done accordingly.