bredanativi
bredanativi
10-05-2014
Mathematics
contestada
solve for x: 2x^2-2x-24=0
Respuesta :
Lilith
Lilith
10-05-2014
[tex]2x^2-2x-24=0 \ \ :2\\ \\x^2- x-12=0 \\ \\x^2- x-3x+3x -12=0\\ \\x^2-4x+3x -12=0 \\ \\x(x-4)+3(x-4)=0[/tex]
[tex](x-4)(x+3) =0\\ \\x-4 =0 \ \ or \ \ x+3 =0 \\ \\x=4 \ \ or \ \ x=-3[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 68+ )
Otras preguntas
Which is greater 4 P 3 or 4 C 3?
What is the product of (3x+5) and (x+4)
Which of the following cities was the first place to establish a democracy? A)Rome B)Athens C)Egypt D)Israel
What is the best estimate for the answer to 217.33 - 19.19? Round each number to the nearest tenth.
What are two ways gravity is affected?
Select the correct answeWhat is the first step in preparing for a poetry performance?A.getting the tone rightB.conveying the appropriate emotionsc.using good vo
A line passes through the point (8.-8) and has a slope of -5/4. Write an equation in point-slope form for this line. plz
question21)which of the following was not an effect of the Bolshevik Revolution A. all land Banks mines and factories came under State Control. B. the tsar and
What is one example of a typo? A. Missing or repeated punctuation B. Unsupported or unproven claims C. Problems with sentence structure D. Evidence that's easy
Qu'est-ce que tu aimes? Choose the right answer according to the illustration: (1 point) J'adore dormir J'aime beaucoup danser. J'aime bien écouter des CDs. Je
