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Simplify the brackets, (x+1)(x+2)

The answer is: x 2 +3x +2 I worked this out using a method I know as 'the smiley face method'. I can elaborate furthur if needed.
NR
2668 Views

Que penses-tu de l'énergie nucléaire en France?

Le nucléaire est la source d’énergie le plus utilisée en France. 80% de l’énergie en France vient des centrales nucléaires. La France a commencé á développer cette source pour de nombreuses raisons. Principa...
OJ
Answered by Ophelia J. • French tutor
2904 Views

The size of two of the three angles in a triangle are 40 degrees and 70 degrees. What is the special name given to this triangle?

It is an isosceles triangle. We know this because 40 + 70 = 110. So we take away 110 from 180 (The sum of the three degrees in a triange) to give us the degree of the last angle, which is 70. Since we have t...
NR
Answered by Natalie R. • Maths tutor
20763 Views

Describe the process of an action potential through a neuron

A stimulus (e.g. change in temperature, pain, etc.) results in the depolarisation of the membrane of the neuronal cell body. This depolarisation causes the membrane potential to rise from resting potential (...
EC
Answered by Emily C. • Biology tutor
4999 Views

What are the steps involved in the reflex pathway that would cause you to automatically move your hand off of a hot surface?

Heat is sensed by temperature receptors in the skin of the hand. The signal generated by the receptors in response to heat travels along a sensory neurone to the spinal cord. The signal causes the release of...
SV
Answered by Sian V. • Biology tutor
3501 Views