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Just like the quadratic formula. I have made a linear formula as i was thinking through how the quadratic formula (making x the subject of ax^2 + bx + c = 0) so i also made x the subject of the standard linear equation
y=mx+c
y-c=mx+c-c
y-c=mx
(y-c)/m=(mx)/m
(y-c)/m=x
PROOF
Solve;
1) 15=2x+3
x=(y-c)/m
x=(15-3)/2
x=12/2
x=6 CORRECT
Can any one solve this ?
2x^(-2) + 5x + 10 = 0
If Two US pennies Weigh as one quater. 4 kg of US pennies make $100 4 kg of US quaters will make ????
You are not helping me all i want is the cubic formula but you are just giving other explanations i have been studying equations of math for 6 months i know almost everything other than the cubic formula pleaseeeeeeeeee!! I need the cubic formula if it is not there lets make it maths is made by p'ple like us if you can't it means you are ./.?.¡.\.:.".. Nothing
The question said make x the subject of the formula NOT what is this type of equation
Make x the subject of the ax^3 + bx^2 + cx = -d
How can i become a pm or an administrator
A square with a side (x+7)cm and its area as 33cm^2 find its perimeter
Has anyone of you ever heard of the cubic formula. Or ever dreamt of it existing so cubic equations could be easily solved. Let our dreams come true. I have been working on it recently but i can't do it alone. I request anyone with an idea to start. We can make a cubic formula. Waiting for your help
Is there a formula like a the quadratic formula where i just plug in the a,b....y,z
Wait i have heard of a cubic formula! What is it ¿¿¿¿
I have used an online cubic equation solver giving a = 2 b = 0 c = 1 d = -171 and got 3 solutions
[-2.1838+3.84798i]
[-2.1838-3.84798i]
[4.3676] try proving it
It was from no where i was just thinking through some complex equations and i found this but i think we can solve it as a cubic equation in this way 2x^3 + 0x^2 + x = 171
Not a mistake ! So do you mean it can't be solved ?
2x^3 + x = 171
How many positive integers less than 2002 are a multiple of 3 or 4 but not 5
So we will use 6 giving 66+2c=76 c=5 and we know that a=3 b=6 c=5 abc=365.
AS SIMPLE AS DYING
Another one
From where? Step by step
The sum of A number and the sum of its digits is 379. What is the number???????????
What if it is 2x^2 + 432/(49x) = 3
Sorry I made a mistake it was supposed to be 2x^3 +(432/(49x)) =3
Then solve it step by step
It is not true !
-a^2 is not equal to -1×a^2
PROOF
if a=5 -a^2=(-5)^2=-5×-5=+25 but -1×a^2=-1×5^2=-1×25=-25
So -25 is not equal to +25
2x^2 + (432/49x) = 3