Best Answer

2x+8x-2=22

10x-2=22

10x+2=+2

10x=24

10/10=24/10

x=2.4

Q: Who can solve the quadratic equation 2x squared plus 8x minus 2 equals 22?

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That is a quadratic equation and must be factorised using two brackets. It is just a little confusing to recognise it as a quadratic as the middle x value is not there so we treat it as 0 - which means the two numbers must cancel each other out: (2x + 1) (2x - 1)

x = plus or minus 6.

Solve this problem -x squared -40x- 80 =0

Unfortunately, limitations of the browser used by Answers.com means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question. Please resubmit your question spelling out the symbols as "plus", "minus", "equals" etc. And using ^ to indicate powers (eg x-squared = x^2).

The most surefire way to find the zeroes of a quadratic are to apply the quadratic formula. The formula says that the zeroes of quadratic equations which are generally written as ax2+bx+c=y can be found by taking (-b+/-(b2-4ac).5)/2a or if this notation makes no sense... negative b plus or minus the square-root of b squared minus four ac all over two a. Note: if b squared minus four ac is less than zero, the function has non-real roots

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type you answer here!

(1/2, 71 and 3/4)or(0.5, 71.75)