What is factor z^2+2z-15 ?

The solution to factor z^2+2z-15 is (z-3)(z+5)

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factor z^2+2z-15

factor

z^{2} + 2 z - 15

(z - 3) (z + 5)

Solution steps

z^{2} + 2 z - 15

Break the expression into groups

= (z^{2} - 3 z) + (5 z - 15)

Factor out

z

from

z^{2} - 3 z : z (z - 3)

Factor out

5

from

5 z - 15 : 5 (z - 3)

= z (z - 3) + 5 (z - 3)

Factor out common term

z - 3

= (z - 3) (z + 5)

\frac{1}{\frac{2}{\frac{3}{4}}}

\frac{∣ - 2 m ∣}{3} + 3 > 8

s + \frac{5}{7} = - \frac{1}{2}

3 x + 1 = 5 x - 1

x^{2} = - 8