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

If scientists discovered a Lokiarchaeota cell sample, how would it help them determine whether their theory is correct?
Use scientific notation to compare distances between solar system objects. PLZ ANSWER FAST
which organelle in eukaryotic cells makes proteins? A) Vacuole B)Ribosomes C)Golgi Apparatus D)Endoplasmic Reticulm
An element has an atomic mass number of 16 and an atomic number of 7. How many protons and neutrons does the element have?
Solve for x: 5 − (x + 5) > −2(x + 4) (1 point) x > −8 x < −8 x > −18 x < −18
which resources are found in Brazil's rain forests
(WILL AWARD BEST ANSWER)1. What is the height of most lowercase letters called? A. ascender B. baseline C. cap height D. x-height 2. What is the negative space
In ______________ federalism, the powers and policy assignments of different levels of government are like a marble cake, with mingled responsibilities and blur
vertical angles are opposite angles with the same vertex true or false
How do changes in the atmospheric composition throughout earths history Illustrator relationship between living and nonliving parts of the environment