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Sum and product of roots
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THE SUM AND THE PRODUCT OF ROOTS OF QUADRATIC EQUATIONS
Ms. Majesty P. Ortiz
DRILL
7 + 1522-9 +145-6 + (-17)-23
DRILL−𝟑𝟖 +
𝟏𝟖−𝟏𝟒(−𝟓𝟔 )+(−𝟏𝟔 )-1(8)(15)120
DRILL
(-4)(7)-28(-6)(-12)72
DRILL(−𝟏𝟐 )(𝟒𝟐 )-1(−𝟒𝟑 )(−𝟐𝟑 )𝟖𝟗(𝒙+𝟐 ) (𝒙−𝟐 )𝒙𝟐−𝟒(𝒙−𝟓)(𝒙+𝟓)-25
Quadratic Equation Roots Sum of Roots
Product of Roots
GROUP WORK
x = 𝒙𝟏=
−𝒃+√𝒃𝟐−𝟒𝒂𝒄𝟐𝒂
𝒙𝟐=−𝒃−√𝒃𝟐−𝟒𝒂𝒄
𝟐𝒂
Sum of the Roots of Quadratic Equation
Product of the Roots of Quadratic Equation
Examples:
Use the values of a, b, and c of each of the following equations in determining the sum and the product of its roots.
SEATWORK
SUM PRODUCT1. - 4 32. -2 -33. -4 -214. -15.
A.Without solving for the roots, find the sum and product of the roots of each quadratic equation.
1. 2.
B.Write a quadratic equation with integral coefficients whose sum and product of roots are given.
1. 2. 0 and 6
ASSIGNMENT