Solve the quadratic by factoring. x^2-8x-25=-3x-1

2 answers:

6 0

First, make sure that all the variables and numbers are on the same side:

x^2 - 8x - 25 = -3x - 1
x^2 - 5x - 24 = 0

Factor:
(x - 8)(x + 3) = 0
{8, -3}

Phoenix [80]3 years ago

3 0

X=-3, x=8 is the answer

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**MARKING BRAINLIEST PLEASE HELP**

raketka [301]

Answer:

$\text{1. } v=16t+\frac{h-c}{t},\\\text{2. }90\:\mathrm{ft/s}, \\\text{3. Cannot be determined}$

Step-by-step explanation:

1. The initial equation given to us is $h=-16t^2+vt+c$ . Rearranging the equation to isolate $v$ , we have:

$vt=16t^2+h-c,\\\boxed{v=16t+\frac{h-c}{t}}$

2. Using the equation we rearranged in part 1, we can substitute given values:

$v=16(3)+\frac{131-5}{3},\\v=48+42=\boxed{90\:\mathrm{ft/s}}$

3. We see from our equation in part 1 ( $v=16t+\frac{h-c}{t}$ ) that when $t=0$ , the denominator of our fraction will be equal to 0. Since we cannot divide by 0, the velocity remains undefined and cannot be determined.