Whats up guys..this is kind of urgent..just these 3 questions I need..
1. Factor the trinomial:
24h^2-22h-35
2. Solve:
5s^2=36s+32
3. Solve the equation:
49s^2+56s=-16
Thanks alot guys..I really appreciate the help
Hello, Mike!
You need to brush up on your Factoring . . .
$\displaystyle (4h-7)(6h+5)$1. Factor the trinomial: .$\displaystyle 24h^2-22h-35$
We have: .$\displaystyle 5s^2 - 36s - 32 \:=\:0$2. Solve: .$\displaystyle 5s^2\:=\:36s+32$
Factor: .$\displaystyle (5s + 4)(s - 8) \:=\:0$
I assume you can finish this problem now . . .
We have: .$\displaystyle 49s^2 + 56s + 16 \:=\:0$3. Solve: .$\displaystyle 49s^2+56s\:=\:-16$
Factor: .$\displaystyle (7s + 4)(7s + 4) \:=\:0$ . . . etc.
for all of the problems, all you have to do is bring everything to one side
then you'll have ax^2-bx+c
then you can use the quadratic equation:
x= (-b +/- ((-b)^2 -4ac)^1/2))/2a
here is a nicer version of the formula:
and then you just sub in the number and you'll get an answer
(sorry i'm new, and maybe not the best person at explaining)
EDIT: this works for numbers 2 and 3, although i think that Soroban's method is a lot easier :P