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

If I arrange the numbers 4,5,6,7,8,9,10,11 and 12 in the squares so that the sums of all the rows,columns and diagonals are 24 what is the answer?(magic squares

Round the number to the given place value. 1.044; hundredths A.1.5 B.1.4 C.1.05 D.1.04i think it is D. Am i correct?

Jill earns 1.5 times her normal hourly rate for each hour she works after 40 hours in a week. She worked 52 hours this week and earned $638. What is her normal

why forces are balanced and unbalanced? need help with this the lesson is tommorow

If I arrange the numbers 4,5,6,7,8,9,10,11 and 12 in the squares so that the sums of all the rows,columns and diagonals are 24 what is the answer?(magic squares

18/15 into a mixed number

Which does not show a direct variation between x and y? A.y = x/9 B.y = 2x C.y = 0.5x D.y = 9/xIf f(x) varies directly with x, and f(x) = 8 when x = 6, writ

what is 1\4 times 96

what did god give to moses on mount sinai

Which explanation of the solar system best fits the observations of the planets and how they orbit the sun? (Points : 3) The gravity of a large, massive