SOLUTION: 1) Solve the following quadratic equation by factoring: a) x2 − 6x −16 = 0 b) Solve the quadratic equation 6x2 + 3x – 18 = 0 using the quadratic formula. Read

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: 1) Solve the following quadratic equation by factoring: a) x2 − 6x −16 = 0 b) Solve the quadratic equation 6x2 + 3x – 18 = 0 using the quadratic formula. Read       Log On


   

Question 511411: 1) Solve the following quadratic equation by factoring:
a) x2 − 6x −16 = 0


b) Solve the quadratic equation 6x2 + 3x – 18 = 0 using the quadratic formula.
Read the information in the assignment list to learn more about how to type math
symbols, such as the square root.


c) Compute the discriminant of the quadratic equation and then
write a brief sentence describing the number and type of solutions for the
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
a) Factor to (x+2)(x-8) = 0, x = -2 or 8

b) First divide both sides by 3 to make the coefficients simpler --> 2x^2 + x - 6 = 0. Then we use the quadratic formula:

, roots are 3/2 and -2.

You do not need to type "Read the information...root" because we do not have your assignment list, and most of us already know how to input math expressions using LaTeX or the code that algebra.com has.

c) Incomplete.