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f(x)=12x^2e^2x - 14, find the x-coordinates of the turning points.

f(x)=(12x^2)(e^2x) - 14, so using the chain rule f'(x)=(24x)(e^2x) + (12x^2)(2e^2x).To find the turning points set f'(x)=0, so (24x)(e^2x) + (24x^2)(e^2x) = 0. Thus (24xe^2x)(1+x)=0. Thus x=0 or x=-1.

CH
Answered by Charlotte H. Maths tutor
3005 Views

Solve algebraically the simultaneous equations x^2 + y^2 = 25 and y - x = 1

Let's label the equations x2 + y2 = 25 (1) y - x = 1 (2). We can use substitution to solve this simultaneous equation. Let's make y the subject of the equation (2) and we get y = x...

VN
Answered by Vithya N. Maths tutor
8484 Views

Explain three difficulties economists face when they try to measure unemployment accurately.

Unemployment, while useful in some cases, is inherently flawed as a metric for socio-economic progress. Official unemployment statistics fail to take into account the issue of hidden unemployment, defined...

CR
4619 Views

What is the difference between London dispersion forces and hydrogen bonds?

Both are a type of intermolecular forces which means they act between more than 1 molecules. Do not confuse them with intramolecular forces acting within 1 molecule. Lond...

DS
Answered by Daria S. Chemistry tutor
24463 Views

Find all real solutions of (x^2 +4x +3)^(x^2 -6x+8) = 1

Rewrite as a^b = 1, where a = x^2+4x+3 and b = x^2-6x+8List the cases for which a^b = 1Case 1: a = 1:So x^2+4x+3=1 => x^2+4x+2=0 => x=-2 +/- sqrt(2)Case 2: b=0, a ≠ 0:b=(x-4)(x-2) => x = 2, x=4Ch...

NM
Answered by Nicholas M. PAT tutor
1127 Views

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