Destinationz Destinationz

25-04-2019
Mathematics

contestada

f(3)=x^(3)-19x+30

Show that is equation = 0

Respuesta :

lordnewell lordnewell

25-04-2019

Sub in 3 for all the x: =(3)³ - 19(3) +30

Expand the brackets: =27 - 57 + 30

Solve the equation: =0

Say you've solved it: QED

Answer Link

Otras preguntas

1. A solid is 4 cm tall, 5 cm wide and 3 cm thick. It has a mass of 120 g. What is its density?

5.2 more than the product of seven and a number

what is the square root of 90

write two decimals one repeating and one terminating with values between 0 and 1 then write an inequality that shows the relationship between your two decimals

How do scientist gather information about the natural world

What is 10 times as many as 100

Use the number 913,256. Write the name of the period that has the 913 digits

simplify fraction 7 / 27

Which country was NOT part of the Allied Powers during World War I? a. Austria-Hungary b. Serbia c. Great Britain d. France

A 1,000-kilogram car traveling with a velocity of +20. meters per second decelerates uniformly at -5.0 meters per second squared until it comes to rest. What i