Question

Factor the polynomial:

z2 + 3z - 4

Answer 1

(z +4)(z-1)

Answer 2

thanks ... um how did the one end up negative

Answer 3

z^2 +4z -z -4
z(z+4)-1(z+4)
(z+4)(z-1)

Answer 4

the last two numbers in the brackets have to multiply to give -4 and add to give +3.

Answer 5

thank you guys soooo much

Answer 6

you have to factor in such a way that if you multiply middle terms coefficients it will give end term coefficients product....