Question

2 x square - 7x + 3​

Answer 1

Answer:

Given : 2x^2+7x+32x

2

+7x+3

To Find: x

Solution:

2x^2+7x+32x

2

+7x+3

We will use discriminant rule : x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}x=

2a

−b±

b

2

−4ac

a = 2

b = 7

c= 3

Substitute the values .

x=\frac{-7\pm\sqrt{7^2-4(2)(3)}}{2(2)}x=

2(2)

−7±

7

2

−4(2)(3)

x=\frac{-7+\sqrt{7^2-4(2)(3)}}{2(2)},\frac{-7-\sqrt{7^2-4(2)(3)}}{2(2)}x=

2(2)

−7+

7

2

−4(2)(3)

,

2(2)

−7−

7

2

−4(2)(3)

x=3,-0.5x=3,−0.5

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

2x²-7x+3=0

2x²-6x-x+3=0

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

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

x-3=0 Or 2x-1=0

x=3 2x=1

x=1/2