shadowthedemon1 shadowthedemon1

25-03-2021
Mathematics

contestada

Find the zeroes of the polynomial using the quadratic formula.

2x2 − 3x − 15 = 5

11

−5/2

5

4

Respuesta :

26-03-2021

Answer:

Step-by-step 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

Answer Link

Otras preguntas

Is this the correct way?

say if it is right or wrong. Changpa is the people who live in Leh.then what is Changthang?

CAN SOMEONE HELP ME ON HOW TO START THIS PLEASE

The driver of a pickup truck accelerated at a rate of -5 m/s2 in 2.0 seconds. What was his net change in velocity?

If you spin the spinner 6 times, what is the best prediction possible for the number of times it will land on green or yellow?

can someone help me?

Which equations have the same value of x as Three-fifths (30 x minus 15) = 72? Select three options. a.18 x minus 15 = 72 b.50 x minus 25 = 72 c.18 x minus 9 =

historical experiences of North Korea

please help me please hop

Read each sentence. Circle the answer that describes the word bold. My friend Isabel likes to swim. A. Appositive B. Indirect object C. Object complement D.