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Which equation could be solved using this application of the quadratic formula? PLS HELP

Which equation could be solved using this application of the quadratic formula? PLS-example-1
User Ben Gulapa
by
2.7k points

2 Answers

22 votes
22 votes

Answer: D

Explanation:

The quadratic formula helps you find the roots of a quadratic function, specifically where the function equals zero. In order for an equation to match the use of the quadratic formula shown, the value of 'b' must be +12. It also demands that 'a' must be +2, and 'c' must be -9. Answer D has all these prerequisites.

Which equation could be solved using this application of the quadratic formula? PLS-example-1
User GCoh
by
3.0k points
11 votes
11 votes

Answer:

d)
2x^2+12x+4=13

Explanation:

Quadratic formula:


x=(-b\pm√(b^2-4ac) )/(2a)

The quadratic formula can be used to solve a quadratic equation in the form
ax^2+bx+c=0

From inspection of the given quadratic formula:

  • a = 2
  • b = 12
  • c = -9

Therefore, plugging these values into the general form of the quadratic equation:


2x^2+12x-9=0

If we add 13 to both sides we get:


2x^2+12x+4=13

User Don Djoe
by
2.9k points
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