Question

Quadratic formula PLEASEE help!!

Answer 1

x = -0.5, -3.5

Explanation:

You want the solution to 4x² +16x +7 = 0 using the quadratic formula.

Application

Comparing the given equation to the standard form quadratic, you can identify the coefficients as ...

• a = 4
• b = 16
• c = 7

Substituting these values into the quadratic formula, you find the solutions to be ...

`x=(-16\pm√(16^2-4(4)(7)))/(2(4))=(-16\pm√(144))/(8)\\\\x=(-16\pm12)/(8)=(-4\pm3)/(2)\\\\x=\left\{-(7)/(2),\ -(1)/(2)\right\}`

The possible values of x are -3.5 and -0.5.