Find the zeroes of the polynomial using the quadratic formula. 2x2 − 3x − 15 = 5 11 −5/2 5 4

MatRt asked Jun 4, 2022

476,120 views

30 votes

Find the zeroes of the polynomial using the quadratic formula.

2x2 − 3x − 15 = 5

11

−5/2

5

4

MatRt asked Jun 4, 2022

by MatRt

2.1k points

Your comment on this question:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

15 votes

Answer:

Explanation:

2x² - 3x - 15 = 5

2x² - 3x - 20 = 0

Quadratic formula

x = [3 ± √(3² – 4·2(-20))] / [2·2]

= [3 ± √169] / 4

= [3 ± 13] /4

= -2.5, 4

Ghik answered Jun 10, 2022

by Ghik

2.8k points

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

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

1.6m questions

2.0m answers