Chemistry, asked by SHIVANSH03307, 1 day ago

Which of the following is a quadratic equation?

(a) x

2

+ 2x + 1 = (4 – x)

2

+ 3​

Answers

Answered by Dksv1551
1

Answer:

not a quadratic equation

Explanation:

A) x² + 2x + 1 = (4 - x)² + 3

By using algebraic identity,

(a - b)² = a² - 2ab + b²

x² + 2x + 1 = 16 + x² - 8x + 3

By grouping,

x² - x² + 2x + 8x + 1 - 16 - 3 = 0

10x - 18 = 0

The degree of the equation is 1.

Therefore, x² + 2x + 1 = (4 - x)² + 3 is not a quadratic equation.

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