<span>sqrt(3x+7)=x-1 </span>One solution was found : <span> x = 6
</span>Radical Equation entered :
<span> √3x+7 = x-1
</span>
Step by step solution :<span>Step 1 :</span>Isolate the square root on the left hand side :
Radical already isolated
<span> √3x+7 = x-1
</span>
<span>Step 2 :</span>Eliminate the radical on the left hand side :
Raise both sides to the second power
<span> (√3x+7)2 = (x-1)2
</span> After squaring
<span> 3x+7 = x2-2x+1
</span>
<span>Step 3 :</span>Solve the quadratic equation :
Rearranged equation
<span> x2 - 5x -6 = 0
</span>
This equation has two rational roots:
<span> {x1, x2}={6, -1}
</span>
<span>Step 4 :</span>Check that the first solution is correct :
Original equation
<span> √3x+7 = x-1
</span> Plug in 6 for x
<span> √3•(6)+7 = (6)-1
</span> Simplify
<span> √25 = 5
</span> Solution checks !!
Solution is:
<span> x = 6
</span>
<span>Step 5 :</span>Check that the second solution is correct :
Original equation
<span> √3x+7 = x-1
</span> Plug in -1 for x
<span> √3•(-1)+7 = (-1)-1
</span> Simplify
<span> √4 = -2
</span> Solution does not check
2 ≠ -2
One solution was found : <span> x = 6</span>
T=D/S
15K/7.6= 1973.6842sec round up=1974/60s =32.9 round up 33minutes
=33 minutes
Answer:
Step-by-step explanation:
The roots of the given polynomial are:
Since, are the roots of the polynomial, according to the factor theorem, would be the factors of the polynomial.
Since we have the factors of the polynomial, we can multiply them to get the desired polynomial.
Let the polynomial be represented by P(x), so
The polynomial represented by P(x) has the given roots.
The Answer is 2
34.989.I used a physics book
Answer:
19 - 28/n
n= 7
19 - 28/7
19-4
= 15
Step-by-step explanation: