33+-+Sec.+10.5B

=1 0 . 5 B Solving  Quadratic Equations: =

= **Leading Coefficient  Not 1 ** =

=//-By Samantha Huynh & Nolan Ruiz // = = =

Factoring Quadratic Trinomials

Description: Many quadratic trinomials cannot be factored with integer coefficients.
Trinomials:

EX1) a=3, b=-2, c=-2 3X^2-2x-2=0 step 1) now add all the opposites

step 2)Next, you fill in the values for a, b, and c into the quadratic formula. step 3)Now you must distribute all the numbers in the parenthesis and add them together step 4)the next step is to take the square root of the number inside of the square root sign step 5)Next add -3+5 and -3-5 your answers should be the two answers at the end of this problem.

Example 2:

5x^2-11x+2=0 factor



Now the next problem....

4//x^//2 + 7//x// – 15 = 0 Now you plug in the a, b,and c into the quadratic equation

Redo the steps from example 1 your final answers should be -3 and 10/8

Practice Problems 2x^2 + x - 6 = 0 3x^2 +8x +5 = 0