# Pre Calcu

Use the quadratic formula to find the zeros of f

F(x)=2x^2-4x-11

1. 👍 0
2. 👎 0
3. 👁 139
1. { 4 +/- sqrt (16 + 88) ] /4

[ 4 +/- sqrt(104) ]/ 4

[ 4 +/- 2 sqrt (26) ]/4

1 +/- 0.5 sqrt(26)

1. 👍 0
2. 👎 0
posted by Damon
2. Wouldn't it be 16-88?

1. 👍 0
2. 👎 0
3. Oh, wait nvm. I didn't notice the negative sign on the 11

1. 👍 0
2. 👎 0

## Similar Questions

1. ### Math

Solve for the zeros of the function using the quadratic formula. 3x^2=-4x+6 I know what the quadratic formula is but when I put it into the formula I keep getting an error on the graphing calculator.

asked by M on April 9, 2015
2. ### Precalc

What happens if you try to find the zeros using the quadratic formula for k(x)=x^2 -2x+2?

asked by Sean on January 30, 2019
3. ### Math College Algebra

For the solution of finding zeros flr -6x^2-13x+5 When i use factoring and completing the squares the zeros are 1/3 and -5/2 However when i used the quadratic formula it gave me -13+ - sqrt of 17/ 12 Why is that. Is it still tge

asked by Miracle on February 15, 2016
4. ### Algerbra

7.f(x)=2x^2-3x+1 13. f(x)=x^2-6x+1=0 *Solve for the zeros/roots of the following quadratic equations by using the quadratic formula* Any help please.....

asked by Kayla on May 22, 2017
5. ### Pre-Calculus

Find all the real zeros of the polynomial. Use the quadratic formula if necessary. 4x^3 − 10x^2 + 9

asked by Jessica on September 14, 2014
6. ### algebra

Use the quadratic formula to find the zeros of the function. Round to tenths if necessary. y = 17x^2 - 21

asked by tracy on October 20, 2011
7. ### Pre Calc

I am familiar with this type of problem but can't seem to get the right answer. Use the given zero to find the remaining zeros of each function f(x)=x^4-9x^3+7x^2-91x-348,zero 5-2i I normally would use synthetic division with the

asked by Zach on November 13, 2009
8. ### can you check my answers precalculus

can you check my answers? Find Pk + 1 if Pk = 7 + 13 + 19 + ...+[6(k - 1)+1] + (6k + 1) 7 + 13 + 19 + …+[6(k - 1) + 1] + (6k + 1) + [6(k + 1) + 1] 8 + 14 + 20 + …+[7(k - 1) + 1] + (7k + 1) 7 + 13 + 19 + …+(6k + 1) 7 + 13 +

asked by Anonymous on December 14, 2016
9. ### precalculus

can you check my answers? Find Pk + 1 if Pk = 7 + 13 + 19 + ...+[6(k - 1)+1] + (6k + 1) 7 + 13 + 19 + …+[6(k - 1) + 1] + (6k + 1) + [6(k + 1) + 1] 8 + 14 + 20 + …+[7(k - 1) + 1] + (7k + 1) 7 + 13 + 19 + …+(6k + 1) 7 + 13 +

asked by Anonymous on December 14, 2016
10. ### math help how do i do this

Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring. −b b^2 − 4ac 2a Use the part of the quadratic formula that you chose above and find its value, given the following

asked by Oscar on March 1, 2016

More Similar Questions