Question

solve by formula method 2x2+5x-2=0​

Answer 1

Answer:

4+5x-2=0

5x-2=0

x=

$\frac{2}{5}$

Answer 2

2 × 2 + 5x - 2 = 0

4 + 5x - 2 = 0

4 - 2 + 5x = 0

2 + 5x = 0

5x = 0 - 2

5x = -2

x = -2/5

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