Top answers


Solve the simultaneous equations: y+4x+1=0 and y^2+5x^2+2x=0

y= -4x-1y 2 = (-4x-1) 2 = 16x 2 +8x +1y 2 +5x 2 +2x = 0lets substitute what we found y 2 equal to earlier, which gives us(16x 2 +8x +1) + 5x 2 +2x = 021x 2 + 10x +1 = 0after factorising this we get(7x+1)(3x+...
OU
Answered by Oleksandr U. Maths tutor
5129 Views

What are Isotopes?

Atoms and elements are made of protons, neutrons and electrons. The nucleus is made of protons and neutrons, and the electrons surround the nucleus, as shown in the illustration below. The sum of the number ...
JP
3456 Views

According to tort law, who is your neighbour ?

Your neighbour is someone we could reasonably expect to be affected by our acts or omissions
IF
Answered by Ibitein F. Law tutor
2129 Views

What is the difference between compounds elements and atoms etc..?

This can be such a confusing topic and something that I struggled with but once you get it, it makes so much sense. The best way for me to learn these was using flashcards so if that's something you want to ...
RB
Answered by Rebeka B. Chemistry tutor
3440 Views

How to Write a Comparative Critical Essay on a Novel (Brief Example)

Introduction The American literary critic Robert Scholes described the story of Esther Greenwood in The Bell Jar as “…how she tried to die, and how they stuck her together with glue.” (make sure to reference...
UW
Answered by Ursula W. English tutor
1793 Views