Answer:
Factor out the greatest common factor.
x^3-3x^2-x
→ x(x^2-3x-1)
<span><span><span>-2<span>40x<span>^3 -</span></span></span> 8<span>64x<span>^2 </span></span></span>+ 394x<span> +</span></span> 8<span>
Hope this helps
</span>
Answer:
x = 6
Step-by-step explanation:
Take f(x) = -(x+9)(x-21) and multiply it out. We get:
f(x) = -[x^2 + 9x - 21x - 189], or
f(x) = -x^2 + 12x + 189
This is a quadratic equation. The coefficients are a = -1, b = 12 and c = 189.
The equation of the axis of symmetry is x = -b/(2a), which here equals:
x = -12 / [2*(-1)], or x = 6.
Answer:
on what ?
Step-by-step explanation:
126/84=1.5
1.5*6.5=9.75
9.75 gallons of gas are needed to travel 126 miles.
