Check whether (x – 1) (x +2) = x + 3 is a quadratic equation or not.

no, it is not

Step-by-step explanation:

STEP 1: Simplify (x−1)(x+2).

STEP 2: Move all terms containing x to the left side of the equation.

STEP 3: Move all terms not containing x to the right side of the equation.

STEP 4: Take the square root of both sides of the equation to eliminate the exponent on the left side.

±

STEP 5: The complete solution is the result of both the positive and negative portions of the solution.

true

step-by-step explanation:

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square