Answer:
x = -3, 2, 3.
Step-by-step explanation:
f(x )= x^3 - 2x^2 - 9x + 18 We factor this by grouping:
f(x) = x^2(x - 2) - 9(x - 2)
f(x) = (x ^2- 9)(x - 2)
f(x) = (x - 3)(x + 3)(x - 2).
The zeroes of the function are:
x = -3, 2, 3.
21. if Sam's erasers are represented by x, then sari, who has three times more, would be represented by 3x. since you are adding two together to get 28, the equation would be 28=3x+x. Simplify to 28=4x, divide by 4 to isolate x, where x=7. multiply this by 3 to get sari's amount.
Answer:
x = 2 and x = 4
Step-by-step explanation:
The solution of the given equation is shown on the graph
<u>There are two intercepts with coordinates of</u>
<u>The x-coordinates are </u>
Correct option is 3 or C.
Answer: First question: D, Second question: A
Step-by-step explanation:
Note: I'm not so good at expanding so I'll just solve it :)
So this leaves either C or D
Apply the sum rule:
8-70=-62
The only one that gives a negative sum is D
For the second picture, the one you have chosen is correct
a1 = 3 and r = -5 so:
an = 3/5 * (-5)^n
Plugging in 8 for n (the first choice) we get the given term: -234,375
Answer:
103
Step-by-step explanation:
(-8)²-3(-8)+15
64+24+15
103
