For problems like this you can move the y's on the bottem up top by fliping the sign of the exponent (in this case 7 to -7) and MULTIPLYING it with EVERYTHING on top, then because of properties of multplication you can add the exponents to combine them into one term (in this case add 3 and -7 to get -4)

If any of this does not make sense let me know and ill try to clarify better
 
        
        
        
Answer: 128/15 min or 8.5 min
i
am
right
so
trust
me
i
swear
on
my
mama
this
is
correct
my
g
 
        
             
        
        
        
Answer:
(x+5^3 is the answer of this question
 
        
             
        
        
        
Answer:
Step-by-step explanation:
2x⁴ + 4x³ - 30x² = 2x²*(x² + 2x - 15)
x² + 2x - 15
Sum = 2 
Product = -15
Factors = 5 ; (-3)
x² + 2x - 15 = x² + 5x - 3x - 3 *5 
                   = x(x + 5) - 3(x + 5)
                   = (x + 5)(x - 3) 
2x⁴ + 4x³ - 30x² = (2x²) (x + 5)(x - 3)
 
        
             
        
        
        
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation;
3*n-4-(14)=0 
Pull out like factors :
 3n - 18 = 3 • (n - 6) 
Solve : 3 = 0
This equation has no solution.
A a non-zero constant never equals zero.
Solve : n-6 = 0 
 Add 6 to both sides of the equation : 
 n = 6