Question

check whether the following are quadratic e quations or not:
x(x+1)+8=(x+2)(x-2)​

Answer 1

Answer:

no because the degree comes as 2

Step-by-step explanation:

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Answer 2

The equation x + 2 does not have its degree as 2, so it is not a quadratic equation

Step-by-step explanation:

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

= x² + x + 8 = x² - 2x + 2x - 4

= x² + x + 8 - (x² - 2x + 2x - 4) = 0

= x² + x + 8 - x² + 2x - 2x + 4 = 0

= x + 12 = 0

Hence, the following is not a quadratic equation

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