Question

solve the quadratic equation by completing square method 2x^(2)-5x-3=0

Answer 1

Step-by-step explanation:

2x^2-5x+3 = 0

2x^2-2x-3x+3 = 0

2x(x-1)-3(x-1) = 0

x= 3/2

x = 1

Answer 2

Step-by-step explanation:

b^(2) - 4(a)(c)

25 - 4(2)(-3)

25 + 36

61

Now root 61

7.810

New formula

[-b (+-) b^(2) - 4ac] ÷ 2a

[5 (+-) 7.810] ÷ 4

Therefore x =

+7.810 ÷ 4 OR 5 -7.810 ÷4

3.2025 OR -0.7025