Answer: (8)(-4.5)
Step-by-step explanation: If you were to multiply -4.5 • -8 it would be a positive number but if you multiply (8)(-4.5) that would equal a negative number
x³ - 3x² + 4x - 2
complex roots occur in conjugate pairs
1 + i is a root then so is 1 - i
the factors of the polynomial are therefore
f(x) = (x - 1 )(x - (1 + i))(x - (1 - i))
= (x - 1 )(x² - 2x + 2 ) ( expand factors and simplify )
= x³ - 3x² + 4x - 2
Answer: 7 +2x
Step-by-step explanation:
7 plus twice a number
Twice a number - 2x
7 plus 2x
Answer:
-8
Step-by-step explanation:
2x + 9 = -7
Subtract 9 from both sides
2x = -16
Divide both sides by 2
x = -8
