Question

After being rearranged and simplified, which of the following equations could be solved using the quadratic formula? Check all that apply.

A.-x^3+4x+7=2x^2-9
B.x^2+x+2=0
C.3x^3+9x+3x^2=14+x-1
D.5x+4=3x^3-2

Answer 1

Answer:

Option B:$x^{2} +x+2=0$

Step-by-step explanation:

Any equation of degree 2 is called a quadratic equation.The highest power of the variable is called the degree of the equation.

Quadratic equations can be solved using quadratic formula.

Option B $x^{2} +x+2=0$ is a quadratic equation as it is degree 2 equation and hence can be solved by using quadratic formula.

Answer 2

Answer:

The answers are a,b, and d

Step-by-step explanation: