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2 votes
Solve x^2 + 6x + 4=0?

User DazManCat
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1 Answer

6 votes
You need to use the quadratic formula for this question.

(-b+- √(b^2-4ac) )/(2a)
In your equation, a is 1, b is 6, and c is 4. (I couldn't find a plus minus sign, so that's what the +- means, sorry if there's confusion.)
Sub those into the quadratic formula, and

(-6+- √((6)^2-4(1)(4)) )/(2(1))
For the first answer, we should get
x1=-0.7639, when you add the √6^2-4(1)(4)
For the second answer, we get
x2=-5.2361 when we subtract the √6^2-4(1)(4)
Therefore, the x values that make this equation equal to 0 should be approximately -0.7639 and -5.2361.
The more specific answers are
x1= -3+√5 and x2=-3-√5.

User Cluster
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