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simply fully (2x^2 -3)^2 - (2x^2 + 2)^2

= (2x^2-3)(2x^2-3) -{(2x^2+2)(2x^2+2)}= 4x^4-6x^2-6x^2+9 -(4x^4+4x^2+4x^2+4)= 4x^4-12x^2+9-4x^4-8x^2-4= -20x^2+5= -5(4x^2-1) or 5(-4x^2+1)

MS
Answered by morgan s. • Maths tutor
2899 Views

Write a function that takes a string, and outputs that string formatted in camelcase. (alternating upper and lower case for each character, e.g. cAmElCaSe)

A simple approach would be something like the following:def camelcase(text): camel_chars = [] # start an empty list where we'll store the components of the new string for i in range(len(text)): # for each...

AB
Answered by Andrey B. • Python tutor
1657 Views

Quelle est la différence entre les déterminants "Ses" et "Ces" ?


"Ses" est un déterminant possessif pluriel. Il est lié à un nom pluriel et donne une indication sur la personne (à qui le "nom" appartient). Ex: Léopold a oublié ses

WD
Answered by William D. • French tutor
2426 Views

What is the definition of the slope?

For both the two main subjects I intend on teaching in this platform, I highly recommend to my students to focus on the theory as a first step (this could be a definition, some notes, etc). So, by trying ...

MM
Answered by Maria-Eliza M. • Maths tutor
3432 Views

Find d/dx (ln(2x^3+x+8))

Use the chain rule: dy/dx = dy/du * du/dx
Let y = ln(2x^3+x+8)Let u = 2x^3+x+8
dy/dx = d/dx (ln(2x^3+x+8)) = dy/du * du/dx
dy/du = 1/udu/dx = 6x^2 + 1
dy/dx = 1/u * (6x^2 + 1) = (1/(2x...

Answered by • Maths tutor
3666 Views

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