Answer:
9
Step-by-step explanation:
First, find <em>x</em>. Since <em>x</em> is the average of the three number, add the three up and then divided by three. Thus:
<em>y</em> is the cube root of 8. Thus:
So:
Answer: Factors (x + 2)(x + 7)
Solutions x = -2, x = -7
<u>Step-by-step explanation:</u>
h(x) = x² + 9x + 14
∧
1 + 14 = 15
2 + 7 = 9 ⇒ This sum is the coefficient of the middle term!
(x + 2) (x + 7)
To get the solutions, set each factor equal to zero and solve.
x + 2 = 0 x + 7 = 0
<u> -2 </u> <u> -2 </u> <u> -7 </u> <u>-7 </u>
x = -2 x = -7
Answer:
(888)
Step-by-step explanation:
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