Math.

solving quadratic equation by completing the square

help me pls.solve 2x2-3x-11=0

Question

Math

Answered

Math.

solving quadratic equation by completing the square

help me pls.solve 2x2-3x-11=0

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Raven4everid Raven4everid · Answer 1

Raven4everid Raven4everid

2x2 -3x-11=0

=2x2\2 - 3x/2 -11\2 = 0

= x2 - 3x/2 - 11/2 = 0

=x2 - 3x/2 = 11\2

= x2 - 3x/2 + 9/4 = 11/2 + 9/4

= (x - 3/2 )2 = 62

( then use extracting square roots to get your finale answer... )

............ :)

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