Question

Check whether the quadratic equations. ..x(x + 1) + 8 = (x + 2) (x – 2).​

Answer 1

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Answer 2

Answer:

It is not a quadratic equation.

Step-by-step explanation:

Given :-

x(x + 1) + 8 = (x + 2)(x - 2)

To find :-

To check whether the equation is quadratic equation or not ?

Solution :-

x(x + 1) + 8

(x² + x) + 8

x² + x + 8

(x + 2)(x - 2)

∵ (a + b)(a - b) = a² - b²

x² - 4

So,

x² + x + 8 = x² - 4

x + 12 = 9

➤ Standard quadratic equation :-

ax² + bx + c = 0

∴ It is not in that form, it is not a quadratic equation.

Learn more :-

https://brainly.in/question/26586461

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