lobatojames2 lobatojames2

10-04-2020
Mathematics

contestada

What are the solutions of the equation (2x + 3)^2 + 8(2x + 3) + 11 = 0? Use u substitution and the quadratic formula to solve.

Respuesta :

happystepf29 happystepf29

10-04-2020

u=2x+3, x=u/2-3/2
u^2+8u+11=0
u1=(-8+sqrt(64-44))/2=-4+sqrt(5)
u2=-4-sqrt(5)
x1=u1/2-3/2=-7/2+sqrt(5)/2
x2=u2-3/2=-7/2-sqrt(5)/2

Answer Link

Otras preguntas

The Three Principles of the People, written by Sun Yat-sen, originated its ideas from what piece of historical writing? Gettysburg Address Communist Manifesto D

Act of directing, ordering, or controlling by virtue of explicit statutory, regulatory, or delegated authority at the field level is referred to as

how to convert improper fractions to a mixed numeral

Identify the fort five multiples for each number 7

'Young people in wealthy countries take what they have for granted: they should care more about young people suffering in poor parts of the world, and do more t

which is an equivalent expression for 6(x)-6(2) 2(x-6) 6(x-2) 12(x-1) 36(x-2)

Which characteristic is true of modern-day monsters? A.They are not born of the human race. B.They have extraordinary physical strength. C.They are easily recog

A potential cost for a government leader using a cost-benefit analysis is

Why did studying the human body help Greek artists make their statues look real?

Why did the Phoenicians establish Carthage? to fight Rome to serve as a trading post to sell slaves to control the gold trade