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

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

(40 points best answer) (asap!) In the image below, (AD) ̅ is an angle bisector, (AB) ̅=42, (AC) ̅=35, and (BC) ̅=44. Find the measure of m.

Please help me with the geometry.

According to federal guidelines, how much time should an adult perform moderate exercise each week, in addition to strength training? A. sixty minutes daily B t

If there is a parallelogram with one pair of opposite sides that are congruent and another pair that is parallel, how do I prove it is a parallelogram?

I need help with this social studies question please

Mr. Johnson borrowed $8000 for 4 years to make home improvements. If he repaid a total of $10,320, at what interest rate did he borrow the money?

Im getting better at history but i still need halp

20. As a health care professional, why is it important to address both physical and social needs? In what ways may these impact the patient’s overall health? Yo

How might the polar bears population suddenly increase? How might this affect the ecosystem?

Please Help!!!! Need answer asap!!!! When using tidal and hydroelectric systems mankind must think about the effects on the environment. True or False