how do u factor z^2-5+90

Question

unable to figure what two number multiplied give me 90 ut when added give me -5

Answer 1

This does not give real roots.  Using the quadratic formula, -b plus or minus root of (b^2 - 4* a * c) all over 2a , this gives the square root of a negative which gives no real solutions.

However if this is correct and you are not looking for real sollutions, it goes to...

(10(+/-) sqrt(25-360) ) / 2

= 5 (+/-) (sqrt-335) /2        = 5 (+/-) sqrt(335) i /2

aprox = 5+9.2i, 5-9.2i then sub these in for y to get coordinates

This is most likely not what your looking for however and have probably coppied the question down wrong.