Phillyd80 Phillyd80

04-08-2017
Mathematics

contestada

Solve the equation by factoring. z^2-6z-27=0

Respuesta :

Banabanana Banabanana

04-08-2017

z² - 6z - 27 = 0
z² + 3z - 9z - 27 = 0
z(z+3) - 9(z+3) = 0
(z+3)(z-9) = 0

z + 3 = 0 or z - 9 = 0
z = -3 z = 9

Answer: z=-3 and z=9

Answer Link

Otras preguntas

A soccer ball is kicked At 8m/s. It lands on the ground after being in the air for .85 seconds. At what angle is it kicked?

If the train went 390 miles in 3 hours, what was the speed of the train in miles per hour? 15 pts please hurry

do you think the Allies would have won World War 1 if the United States had not entered the war why do you think so

Which of the following processes are exothermic and which are endothermic? a) frost forms on a car window in winter; b) water condenses on a glass of ice water

Which sentence in this excerpt from William Dean Howells’s “Editha” use an ironic tone

Jonathan borrowed $475 at a simple annual interest rate of 2% how many years will it take him to repay the loan if you wants to pay $38 in interest

Jada's bike wheels have a diameter of 20 inches. How far does she travel if the wheels rotate 37 times?

Chan was leading a group discussion in his university. He discovered that a few participants were dominating the discussion and not letting others speak. What s

Okay, so I was supposed to Simplify the expression 4(3x + 2) - 2 and Factor 20b - 16 completely can anyone tell me if I am correct? 4 (3x + 2) -2 12+8 12x+8

with or without tiles simplify and solve each equation below for x. record your work. a.3x-7=2