6.) (X+)(X-7)=-3x 7.) (X-4)^2+8=0 8.) (X+2)^2 = (X+)^2 9.) (2x-1)^2=(X+1)^2 10.) 2x(X-4)= (X-3) (X-3)

6.) (x+)(x-7)=-3x 7.) (x-4)^2+8=0 8.) (x+2)^2 = (x+)^2 9.) (2x-1)^2=(x+1)^2 10.) 2x(x-4)= (x-3) (x-3)

 

Answer:

6. \\ (x + 7)(x - 7) = - 3x \\ {x}^{2} + 7x - 7x - 49 = - 3x \\ {x}^{2} - 49 = - 3x \\ {x}^{2} + 3x - 49 = 0 \\ \\ 7. {(x - 4)}^{2} + 8 = 0 \\ (x - 4)(x - 4) + 8 = 0 \\ {x}^{2} - 4x - 4x + 16 + 8 = 0 \\ {x}^{2} - 8x + 24 = 0 \\ \\ 8. {(x + 2)}^{2} = {(x)}^{2} \\ (x + 2)(x + 2) = {x}^{2} \\ {x}^{2} + 2x + 2x + 4 = {x}^{2} \\ {x}^{2} + 4x + 4 = {x}^{2} \\ {x}^{2} - {x}^{2} + 4x + 4 = 0 \\ 4x + 4 = 0

9.

(2x-1)^2 = (x + 1)^2

(2x - 1)(2x - 1) = (x+1)(x+1)

4x^2 - 2x - 2x +1 = x^2 + x + x + 1

4x^2 - 4x + 1 = x^2 + 2x + 1

4x^2 - x^2 - 4x - 2x + 1 - 1 = 0

3x^2 - 6x = 0

10.

2x(x-4)=(x-3)(x-3)

2x^2 - 8x = x^2 - 3x - 3x + 9

2x^2 - 8x = x^2 - 6x + 9

2x^2 - x^2 - 8x + 6x - 9 = 0

x^2 - 2x - 9 = 0


Comments

Post a Comment

Popular posts from this blog

1. What Are The Highlights Of Music In The Medieval Period?, 2. Give The Characteristic Of Troubadour, Grigorian Chant Music?, 3.List Down All The Fam

1. what are the highlights of music in the medieval period? 2. give the characteristic of troubadour, Grigorian chant music? 3.list down all the famous composer of the medival period? 4 what are the highlights of music during the renaissance period? 5 what is the characteristic of renaissance music? 6 identify the vocal music of the Renaissance period, give its characteristic?   Answer: 1.Medieval music consists of songs, instrumental pieces, and liturgical music from about 500 A.D. to 1400. Medieval music was an era of Western music, including liturgical music (also known as sacred) used for the church, and secular music, non-religious music. 2.It is vocal music , that is to say, it is sung without accompaniment of instruments (it is performed a capella). It is sung to the unisonous ("monotonous": only one note at a time); that means that all the singers intone the same melody. 3.Johann Sebastian Bach (1685-1750) Wolfgang Amadeus Mozart (1756-1791) Ludwig v...
Read more

What Is The Origin Of Solar System?

What is the origin of solar system?   Answer: OK, I agree Find out more Skip to main content Royal Museums Greenwich Search form Search Search Menu Solar-system-L1075-004_detail.jpg Solar system (detail) The origin of the Solar System How did it all come together? Five major theories about the formation of the Solar System. Explore by themeThe origin of the Solar System The origin of the Solar System How did the Sun, planets and moons in the Solar System form? There is a surprising amount of debate and several strong and competing theories, but do scientists have an answer? What are the theories for the origin of the Solar System? Any theory about how the Solar System came to be has to account for certain, rather tricky facts. We know that the Sun sits at the centre of the Solar System with the planets in orbit around it, but these throws up five major problems: The Sun spins slowly, and only has 1 percent of the angular momentum of the Solar System - but 99.9 percent of its mass....
Read more