Answer:
Step-by-step explanation
Step 1: multiply the coefficient a and the constant c. Given that the general expression of a parabolic equation is ax^2+bx+c
3*5=15
Step 2: examine the coefficient b and try to find 2 numbers which you can multiply to get 15, add or subtract and get - 8
In this Case: - 3*-5=15 and - 3+(-5)= - 8
Step3:
You separate the equation in terms of the two factors you have found
3x^2-3x-5x+5=0
Step 4:Factorise
3x(x-1)-5(x-1)=0
(3x-5)(x-1)=0
The answer will be -5/2 or -2.5
Answer:
6.8
Step-by-step explanation:
It would be 6+6+6+6=24 because you have to add 6, 4 times cuz a recatengale has 4 faces.
A system of equations may have a single unknown to varying multiples of unknowns , as much the number of unknowns increases , that much system of equations are also built up , else , it can't be resolved
