duelmonsters22 duelmonsters22

25-06-2021
Mathematics

contestada

(X+2)(X+3)(X+4)=990

I know that x=7 but how do i solve it without substitution?

ie. i don't want to use y=x+3 where 990=(y-1)(y)(y+1)

Respuesta :

ferrybukantoro ferrybukantoro

25-06-2021

Step-by-step explanation:

foctorized 990 = 9×10×11

so, (X+2)(X+3)(X+4)=9×10×11

we can choose one of the factors, and get the answer with the same x values

x+2 = 9 , => x =7

x+3 = 10, => x = 7

x+4 = 11, => x = 7

Answer Link

Otras preguntas

What are the two ideas about the universe did Greek philosophers accept

How did Roosevelt's policies help the conservation of natural resources?

Which steps can be used to solve for the value of y ? 2\3(y+57)=178

Why does Nick seem to disapprove of Gatsby's wealth and status in the book the great gatsby?

how do you estimate 12.062g to the nearest tens of a gram

Which of the following is not capable of reacting with molecular oxygen? A. SO₂ B. SO₃ C. NO D. N₂O E. P₄O₆

wayne filled 5 glasses with two thirds liter of soda in each glass. How much soda did Wayne use?

Since your little brother loves cereal you decide to give him his favorite cereal cinnamon toast crunch as a surprise present. There is only one square sheet of

Choose the absolute value inequality that corresponds to the given compound inequality.–5 < x + 2 < 9

What is the basis function of a galvanometer A the transformation of mechanical to electrical B the change in strength of a magnetic field C movement caused b