1st factor is 3x:
<span>= 3x(x² - 8x + 15) </span>
<span>2nd & 3rd factors: </span>
<span>x² - 8x + 15 = 0 </span>
<span>x² - 4x = - 15 + (- 4)² </span>
<span>x² - 4x = - 15 + 16 </span>
<span>(x - 4)² = 1 </span>
<span>x - 4 = 1 </span>
<span>= x - 4 - 1, = x - 5 </span>
<span>= x - 4 + 1, = x - 3 </span>
<span>Answer: 3x(x - 5)(x - 3) are the factors. </span>
<span>Proof: </span>
<span>= 3x(x - 5)(x - 3) </span>
<span>= 3x(x² - 5x - 3x + 15) </span>
<span>= 3x(x² - 8x + 15) </span>
<span>= 3x³ - 24x² + 45x</span>
Every 10 years
on the fifth dinner and the first reunion
Answer:
Step-by-step explanation:
i!!!!!!!!I!!!!!!i1!!!!!!!!!
Answer:
upward
Step-by-step explanation:
y=4x²+4
Look at the coefficient of x²
If it is positive, it opens upward, IF it is negative, it opens downward.
In this case, the x² coefficient is +4, hence it opens upward
(see attached for plot)
Answer:
y = 3x + 7
(Not sure what the question was so, I just put it in slope intercept form)
Step-by-step explanation:
Let x be Steve's age.
Steve = x
Steve's Mom = y
Now let's create an equation:
y - 7 = 3x
y = 3x + 7
(Not sure what the question was so, I just put it in slope intercept form)
Please let me know if I misunderstood the question that way I can help you! <3
