Register
What are the zeros of the quadratic function f(x) = 2x2 + 16x – 9?
168k views
5 votes
What are the zeros of the quadratic function f(x) = 2x2 + 16x – 9?

User Stefan Savev
by
7.7k points

1 Answer

5 votes
Use the quadratic formula
a = 2 b = 16 c = -9

x = [-b +-sq root (b^2 - 4*a*c)] / 2*a
x = [-16 +- sq root (256 -4*-18)] / 4
x = [-16 +- sq root (256 +72)] / 4
x = (-16 +- 18.11) / 4
x1 = .5275
x2 = -8.5275


User Mrpotocnik
by
7.8k points
← Prev Question Next Question →

No related questions found

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Other Questions

How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Link Copied!