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2x^2+2=3x help i need a full eplaination

User Cortlendt
by
5.4k points

1 Answer

2 votes

Answer:

3 ± i sqrt( 7)

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4

Explanation:

2x^2+2=3x

Subtract 3x from each side

2x^2 -3x+2=0

Using the quadratic formula

-b ± sqrt( b^2 -4ac)

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2a

a =2 b = -3 c =2

-(-3) ± sqrt( (-3)^2 -4*2*2)

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2*2

3 ± sqrt( 9 - 16)

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4

3 ± sqrt( -7)

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4

sqrt(-7) = sqrt(-1) sqrt(7) = i sqrt(7)

3 ± i sqrt( 7)

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4

User Azim J
by
6.0k points