Candie521 Candie521

21-05-2014
Mathematics

Answered

Solve the following equation by transforming it into a perfect square trinomial.* 3x2 + 12x = 63

Answer :

21-05-2014

[tex]3x^2 + 12x = 63\\ \\3x^2+12x-63=0\\ \\3(x^2+4x-21)=0\\ \\3[x^2+4x+3x-3x-21] =0 \\ \\3[x^2+7x-3x-21] =0 \\ \\3[x(x +7 )-3(x+7)] =0[/tex]

[tex]3 (x +7 ) (x-3) =0 \\ \\x+7=0 \ \ \ or \ \ \ x-3 =0\\ \\x=-7 \ \ \ or \ \ \ x=3[/tex]

Answer Link

Other Questions

Mrs Noaha bill before tax is 50 The sales tax rate is 3 Mrs Noah decides to leave a 2 tip for the gate keeper based on the pretax amount How much will the total

what is 3130649 rounded to the nearest hundred

Which of the following best summarizes your final decision of Gibbons v Ogden Congress should have the power to create national banks States should have the pow

A local humane society houses 300 animals the ratio of cats to all animals is 7 15 Write a proportion that gives the number of catsb How many cats are in the hu

What is the name given to Unicellular Organisms

why did penn purchase Delaware

What economic factors and conditions converged in the late 1920s to plunge the nation into the Great Depression

England tried to add to its empty treasury by taxing paper and tea taxing everything that went into and out of the colonies both a and b selling tea none of the

In scienceclass the teacher measured 800 milligramns of an chemicalHow manyn grams is it

what is the answer to 5 times 38