When solving a system of equations algebraically, your final step is -3 = 7. How many solutions does this system have?

None

Step-by-step explanation:

Example:

Parallel lines do not intersect and therfor have no solution

y = x - 3

y = x + 7

Set the equations equal

x - 3 = x - 7

Subtract x from both sides

-3 = 7    False. Therefor no solution exists

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

add me on g  

mail to get the anwser

blogan.20174