3 years ago

Fine the solution of 4x^2+4x+1=0

Mathematics

2 answers:

Natalka [10]3 years ago

7 0

Answer:

x = -1/2

Step-by-step explanation:

Lena [83]3 years ago

7 0

Answer:

x = - $\frac{1}{2}$ with multiplicity 2

Step-by-step explanation:

given 4x² + 4x + 1 = 0

This is a perfect square of the type

(a + b)² = a² + 2ab + b²

4x² = (2x)² ⇒ a = 2x, 1 = 1² ⇒ b = 1, and

2ab = 2 × 2x × 1 = 4x

4x² + 4x + 1 = 0

(2x + 1)² = 0, hence

x = - $\frac{1}{2}$ with multiplicity 2

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