Math, asked by zionsaji9562512353, 1 month ago

Solve by completing the square: 4x² + 8x-9 = 0

Answers

Answered by piyushsahu624

0

Answer:

x = (-2 ± 13) / 2

Step-by-step explanation:

4x² + 8x - 9 = 0

4x² + 8x = 9

4x² + 8x +___ = 9 + ___

8/2 ÷ 2 = 2, 2² = 4

4x² + 8x + 4 = 9 + 4

(2x + 2)² = 13

2x + 2 = √13

2x = -2 ± √13

x = (-2 ± 13) / 2

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