30.9k views
4 votes
Fill in the blank space
z2 + 5z – 36 = (z – 4)(z +_)

User DafaDil
by
8.5k points

1 Answer

5 votes
Answer=9

To solve this, we just have to find a number that, when added to -4, make a total of 5, and when multiplied by -4 make a total of -36.

x+-4=5

x*-4=-36

9 fits the parameters for both of these

9+-4=9
9-4=5
5=5

9*-4=36
36=36
User Shevliaskovic
by
8.1k points

Related questions

1 answer
1 vote
40.7k views
2 answers
5 votes
148k views
asked Dec 19, 2021 103k views
NicolasZ asked Dec 19, 2021
by NicolasZ
8.4k points
1 answer
5 votes
103k views