What's New
Refer to the following tables.
A. What are the values of a, b, and c?
a
b
c
Equation
1. 15x2 + 13% -2=0
2. 4x2 + 9 = 12x
3. (x + 2)2=3(x + 2)
B. Determine the sum and product of the roots.
Roots
Equation
Sum
Product
X1
7
X2
3
1. x2 - 10x + 21 = 0
1
2. 2x2 - 3x - 2 = 0
2
2.
3. x2 14x - 26= 0
-
(7-513)
3- 2V11
5
(7 + 5/3)
3+2/11
5
3+2V11 3-2V11
4. 5x2 - 6x - 7=0
What have you observed about the sum and the product of the roots of each
quadratic equation in relation to the values of a, b, and c?
Can you determine the quadratic equation if the roots are given?​