Answer:
k=-6
Step-by-step explanation:
f(2)=-23, 4+2k-15=-23. 2k=-12. K=-6
Answer:
m = - 3
Step-by-step explanation:
a³ + 27 ← is a sum of cubes and factors in general as
a³ + b³ = (a + b)(a² - ab + b²), thus
a³ + 27
= a³ + 3³
= (a + 3)(a² - 3a + 9)
comparing a² - 3a + 9 to a² + ma + 9, then
m = - 3
Answer:
4
Step-by-step explanation:
