AvivY362119 AvivY362119
  • 03-11-2022
  • Mathematics
contestada

what is the positve solution for this equation? 4x2 + 12 x= 135

Respuesta :

DollieJ719182 DollieJ719182
  • 03-11-2022

We need to solve the following equation for x, and choose the positive solution

[tex]4x^2+12x=135[/tex]

we substract 135 from both sides of the equation obtaining the canonical form of a quadratic equation, the we apply the quadratic formula with a=4, b=12 and c=-135 then x will be equal to:

[tex]x=\frac{-12+\sqrt[]{144-4(4)(-135)}}{8}=\frac{48-12}{8}=\frac{9}{2}=4.5[/tex]

then the positive solution to the equation will be x=4.5

Answer Link

Otras preguntas

240,000 rounded to the nearest hundred thousand?
To find an approximate value for a number is called?
What is the square root of 108 in simplified radical form?
A difference that arose between hunter gatherers and civilizations as a result of Neolithic revoultion
Is 0.3333 a rational number and why
Which statement shows the distributive property? A. 13 · (k + 10) = 13 · k + 13 · 10 B. 13 · (k + 10) = 13 · k + 10 C. 13 · (k + 10) = 13 · k · 10 D. 13 ·
Which statement is accurate about Native Americans and the American Revolution? a. Britain avoided any agreements with Native Americans. b. Regardless of whic
how much does 400 go into 10
The 3 parts of a nucleotide are a 5 carbon __________, a phosphate, and a nitrogen ___________.
After 30 baseball games, A Rod had 25 hits . If after 100 games he had 80 hits, what is the average hits per baseball game.