(2(3x4))+(2(4x8))+(2(3x8)) = 24+64+48 = 136
Answer: C
Answer:
500
Step-by-step explanation:
Hope this helps.
Answer: x = 5 1/3
Step-by-step explanation:
subtract 2/3 from each side
x = 5 1/3
Answer:
P(x) = x³ - 3x² - 5x + 15
Step-by-step explanation:
∵ The roots of the polynomial are -√5 , √5 , 3
∴ The polynomial has 3 factors:
(x - √5) , (x + √5) , (x - 3)
∴ P(x) = (x - √5)(x + √5)(x - 3)
= (x² + √5x - √5x - 5)(x - 3)
= (x² - 5)(x - 3) = x³ - 3x² - 5x + 15
∴ P(x) = x³ - 3x² - 5x + 15
