algebra 2

posted by .

find the number of zeros(x-intercept) y=a^2+a-56 show the step please.

• algebra 2 -

Factor
What factors multiply to equal 56 and subtract to
equal 1?

• algebra 2 -

-7.8

• algebra 2 -

Yes
(X-7)(x+8)
Check by foiling
X^2 +8x -7x -56
X^2 +x -56

Similar Questions

1. Algebra help

f(x)=x^3-4x^2-x+4 How do I find the x-intercept for this?
2. College Algebra

OOPS I got the zeros wrong in the last post...please show work. Find a polynomial of the specified degree that has the given zeros Degree 4: zeros -2,0,2,4
3. College Algebra

Using the 7 steps outlined in section 4.3 of your book, analyze the graph of the following function: R(x) = x^2 - 49/x^4 - 16 Step 1: Factor the numerator and denominator of R and find its domain. If 0 is in the domain, find y-intercept, …
4. college algebra

form a polynomial f (x) with real coefficients having the given degree and zeros. degree 5; zeros 5; -i; -6+-i f(x)= a(?

what does Descartes rule of signs tell you about the possible number of positive real number zeros and the possible number of negative real zeros of the function?
6. algebra 2

given the zeros,write a polynomial equation in factored form.zeros: -45,99,127,358 show all the step please.