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Simplify: 2x + 6y + 2y - x

This is simplified by solving common terms (the x's and the y's). Where X and Y terms can't be solved together.

Splitting it up:

You can see 2x-x= x

and for ...

Answered by Sophie W. • Maths tutor

4681 Views

How do I form the perfect tense?

In Spanish, the perfect tense corresponds to the English construction to have done something e.g. I have eaten lunch. Like all compound tenses in Spanish, the verb used to form the

Answered by Connor W. • Spanish tutor

2459 Views

Factorise x^2 + 7x + 10

'Factorise' essentially means put into a simpler form, in this case with two sets of linear equations which would multiply out to give the quadratic equation shown above.

What we are look...

Answered by David J. • Maths tutor

27338 Views

Given y=x^3+5x+3 find dy/dx when x=3

The question can be broken into two steps,

1) dy/dx is asking to differentiate y=x³+5x+3 with respect to x

Differentiating we multiply by the current power and l...

Answered by Robert L. • Maths tutor

11890 Views

Why does resistance increase with temperature?

So, when an electrical charge passes through a resistor, some of that electrical energy is transferred into heat, increasing the temperature. This extra energy causes the particles in the resistor to vibr...

Answered by Fergus F. • Physics tutor

52157 Views