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Solve 2x2 + x − 4 = 0. x^2 + 1/2 x + = 2 +

User Limbo
by
8.2k points

1 Answer

3 votes

Answer:

Explanation:

1

How?

Use the Quadratic Formula.

x=−2+232,−2−232x=\frac{-2+2\sqrt{3}}{2},\frac{-2-2\sqrt{3}}{2}

x=

​2

​−2+2√

​3

​​

​​,

​2

​−2−2√

​3

​​

​​

2 Simplify solutions.

x=−1+3,−1−3x=-1+\sqrt{3},-1-\sqrt{3}

x=−1+√

​3

​​,−1−√

​3

​​

Done

Decimal Form: 0.732051, -2.732051

User Martin Sturm
by
8.3k points