Answer:
p = 7
Explanation:
given
z² + 3z - p = 3 for z = 2
substitute z = 2 into the equation and solve for p
2² + 3(2) - p = 3
4 + 6 - p = 3
10 - p = 3 ( subtract 10 from both sides )
10 - 10 - p = 3 - 10 ( simplify both sides )
- p = - 7 ( multiply both sides by - 1 )
p = 7