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

Question

asked Dec 8, 2021 141k views

1 Answer

Thinice · Answer 1 · 2021-12-14T06:49:35+0000

Answer:

no, it is not

Explanation:

STEP 1: Simplify (x−1)(x+2).

x^2+x-2=x+3

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

x^2-2=3

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

x^2=5

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

±
√(5)

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

x=√(5) ,-√(5)