lmarti0181 lmarti0181

23-06-2017
Mathematics

contestada

what number must you add to complete the square x^2+2x=13

Respuesta :

23-06-2017

You must halve the linear coefficient and then square it. In this case:

(2/2)^2=1 so you must add 1 to both sides of the equation...

x^2+2x+1=14 now the left side is a perfect square...

(x+1)^2=14

Answer Link

Otras preguntas

When exercising, you should (A.) plan to take in extra water. B. avoid wasting time with a warm-up. C. work through any pain that you experience. D. plan to tak

Which best describes the structure of a nucleotide?

Cara is reading a story that shares the perspective of William, the main character. Which type of narrator does this describe? a. first person b. third person

ali's dog weighs 8 times as much as her cat. Together, the two pets weigh 54 pounds. How much does Ali's dog weigh?

If m = 2 and g = 3, what is 3 (m + 3g ) - (2m) ?

what is 7/341 simplified

In an experiment performed in a space station, a force of 60 N causes an object to have an acceleration equal to 4m/s. What is the object's mass?

Name 3 fat-soluble vitamins and 3 water-soluble vitamins and the food in which they are found

Strength training lessens bone loss true or false

Lydia bought a shirt at 20% off its retail price of $40. She paid 5% tax on the price after the discount. How much did Lydia pay for the shirt?