deannaellis deannaellis

11-02-2018
Mathematics

contestada

The square of a number plus 3 times the number is equal to four . What is the number.

Respuesta :

thequeen4 thequeen4

11-02-2018

x^2+3x=4
x^2+3x-4=0
From here you probably know how to solve but I'm going to solve it.
x^2-4x+x-4=0
x(x-4)+1(x-4)=0
(x+1)(x-4)=0
x=-1,4

Answer Link

Otras preguntas

Fred Korematsu sued the US government because he believed his constitutional rights were violated when __________. a. he was arrested for protesting US involve

Particles of soil often differ greatly from the underlying bedrock in color, mineral compoition, and organic content. Which conclusion about these soil particle

How much of the garage foot is white

Which type of rights did the colonists who drafted the Declaration of Independence most want to protect?

How do you put 36/10 into a decimal?

what's the measure of each side length of a unit cube

Having judicial powers gives the president authority

solve for x in this equation log9 1/3=x

What's the difference between graphing and equality with a closed dot and one with an open dot

If you laid one of each size bolt end to end how long would the row of bolts be ?