davidz8536 davidz8536
  • 15-07-2020
  • Mathematics
contestada

What are the roots of the equation? x2−x−42=0 Enter your answers in the boxes.

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 15-07-2020

Answer:

x = 7  x = -6

Step-by-step explanation:

x^2−x−42=0

Factor

What two numbers multiply to -42 and add to -1

-7*6 = -42

-7+6 = -1

(x-7) (x+6) =0

Using the zero product property

x-7 =0   x+6 =0

x = 7  x = -6

Answer Link

Otras preguntas

What is the value of the number 6 in 45,769,331?
0sinθ > 0, cosθ > 0 lies in which​ quadrant?
Two polygons are similar. The perimeter of the smaller polygon is 66 feet and the ratio of the corresponding side lengths is 3/4. Find the perimeter of the othe
How do you provide at least 1 equivalent fraction to 4/10
Which candidate had the best plan, in your opinion, to address the issue? Explain how the candidate used reasoned judgment to convince you.
Glaciers can only form when
What is the multiplicative inverse of 1 2/3 divide by 12
Renee has been trying to conceive a baby for a long time. After a studying her medical history and doing an ultrasound analysis, the doctor told Renee that her
Which mountain range makes the northeastern border of Spain?
5 examples of present subjunctive ? (in a sentence about traveling to Spain if possible). Please help!!