What is the solution set?

Algebra
Tutor: None Selected Time limit: 1 Day

Solve 2x2 + 4x +10 = 0 using the quadratic formula.

A: {-1 + 2i, -1 - 2i}

B:  {-2 + 4i, -2 - 4i}

C: {-4 + 8i, -4 - 8i}

D: {i, -3i}


Apr 6th, 2015

A.

(x+1)^2=-4

x+1 = +2i or -2i

x = -1+2i or -1-2i

Apr 6th, 2015

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