Answer:
x=16
Step-by-step explanation:
9+3x+7=4x
9+7=x
x = 16
Complex zeros exist in conjugate pairs so the fourth zero is 5 - 4i
So we have
P(x) = ( x - 3)(x + 13)(x - (5 + 4i))(x - (5 - 4i))
= (x - 3)(x + 13)( x - 5 - 4i)(x - 5 + 4i)
= (x^2 + 10x - 39)(x^2 - 5x + 4ix - 5x + 25 -20i - 4ix + 20i -16i^2)
= (x^2 + 10x - 39)(x^2 - 10x + 41)
= x^4 - 10x^3 + 41x^2 + 10x^3 - 100x^2 + 410x - 39x^2 + 390x - 1599
= x^4 - 98x^2 + 800x - 1599 Answer
Answer:
Rewrite the equation as:
y = (231 + 7x)/25
Then plug it into a graphing calculator
sry my mistake wrong quesrion
Answer:
........
Step-by-step explanation:
the answer should be 8
