I assume you mean
x(squared) + 4x - 10.
Solving this isn't extremely difficult if you know the quadratic formula.
first of all, remember the form ax(squared) + bx + c
you are currently in that form.
so, the formula is (-b +OR- radical(b(squared) - 4ac)) /2a
so, using the formula, you will get
(-4 + or - radical(16 - 4(1)(-10)))/2(1)
this simplifies to
(-4 + or - radical(56)) / 2
this can simplify to
(-4 + or - radical(4) * radical(14)) / 2
the 2 in the denominator cancels out with the -4 and the 2(comes from radical(4)) in the numerator.
this leaves us with
-2 + or - radical(14)
these are the two solutions.
x= -2 + radical(14)
x = -2 - radical(14)
this may seem complex since it's hard to explain in this way, but I promise you will understand it.
here is an easier to understand version of the quadratic formula.
10 + 9x
(x + 10)(x + 3)
(x - 10)(x - 3)
(x + 10)(x + 4)
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", "times". There is no trinomial in the question.
The list of choices that you posted with your question doesn't include any factor of that expression.
x2 + 4x - 60 factors into (x + 10)(x - 6). You can use the FOIL method to check your answers when you factor.
20x2 - 3x + 10 does not have any real factors.
(11x - 2)(3x - 5)
(5x - 2)(x - 5)
(10x + 1)(x + 10)
(x-10)(x+2)