Answer:
see explanation
Step-by-step explanation:
Given the zero x = a of f(x) then f(a) = 0
(5)
f(9) =9³ - 8(9)² - 2(9) - 63 = 729 - 648 - 18 - 63 = 0
Hence x = 9 is a zero of the polynomial
(6)
2 - 3(- 3)³ - 36(- 3)² - 37(- 3) - 26 = 162 + 81 - 324 + 111 - 26 = 4 ≠ 0
Hence x = - 3 is not a zero of the polynomial
Answer:
1)
2)
Step-by-step explanation:
You can factorize the quadratics equations by applying the proccedure shown below:
1)
Find two number whose sum is 3 and whose product is 2.
These would be 1 and 2.
Rewrite it as folowing:
2)
Find two number whose sum is 15 and whose product is 50.
These would be 5 and 10.
Therefore, you can rewrite it as folowing:
