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Find x and y using the equations 3x + y= 10, x + y = 4

First of all there are 3 different methods of working out simultaneous equations: Elimination, Substitution and Graphical. Today I will show the substitution method.
If x + y = 4 then rearranging the...

Answered by Tobi O. • Maths tutor

3984 Views

x^3 + 3x^2 + 2x + 12

3x² + 6x + 2

Answered by Jiawang Q. • Maths tutor

3303 Views

How to perform integration by substitution. (e.g. Find the integral of (2x)/((4+(3(x^2)))^2)) (10 marks)

We begin by looking at the integral by itself. The first thing we must do is evaluate what type of integration we should perform. It's always important to make sure that it's not a standard integral such ...

Answered by Kenneth B. • Maths tutor

3657 Views

Describe how information passes across a synapse

A chemical neurotransmitter is released from the end of one neurotransmitter, and diffuses across the synapse to bind to transmitters on the next neurone to stimulate an electrical impulse.

Answered by Annabelle K. • Biology tutor

2696 Views