What is the solution? 1/2x2 – x + 5 = 0
Factor out the 1/2. Times each side by 1/2.
You should be able to see it then :)
A. 1 ± i sqrt 11 B. –1 ± i sqrt 9 C. 1 ± i sqrt 9 D. –1 ± i sqty 11
Use equation:\[x = \frac{ -b \pm \sqrt{b ^{2} - 4ac} }{ 2a }\] where you have an equation in the form ax^2 + bx + c = 0. Pay close attention to the determinant b^2-4ac to see whether you have real solutions or complex solutions.
how do i do this
ax^2 + bx + c is the formula that you use to find the variables needed for the quadratic equation
a=1/2, b=-1, and c=5, from the equation in the problem and the form it fits of ax^2 + bx + c = 0. Substitute those values of a, b, and c that I identified for you into the equation in my first post.
How are you coming along with this? Without simplifying, are you able at least to do the substitutions?
so the answer will be C. 1 ± i sqrt 9 ?
Yes! You got it! Good job!
thanks !
You're welcome! Nice working with you!
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