Top answers

How do I work out the length of sides on a right-angle triangle?

Over 2000 Pythagoras discovered that when a triangle has a right angle (90 degrees), and squares are made for each of the three sides, then the biggest square has the exact same area as the two other squares...
AK
Answered by Amrita K. • Maths tutor
4868 Views

Rearrange, 5(a + b)= 2ab , to make 'a' the subject

The question is asking for 'a' to be the subject and therefore our aim is to result in an answer with the form 'a='. The first step is to expand the brackets on the left hand side by multiplying 'a' by 5 and...
MM
Answered by Meera M. • Maths tutor
11286 Views

Solve the equation 3x^(2)-7x+3 giving your answer to three significant figures.

Since there is no further factorisation possible we use the quadratic formula x=[-b±√(b 2 -4ac)]/2a. From the equation in question we have a=3, b=-7, c=3. Substituting into the quadratic formula x=[7±√((-7) ...
BH
Answered by Benjamin H. • Maths tutor
5181 Views

Find the value of x when 2x^2 - x - 6 = 0

2x 2 - x - 6 = 0 This must first be factorised - I use the 'box method' when the reciprocal of x 2 is >1. This is difficult to explain via writing but it involves a little trial and error. 2x + 3 --> (...
GS
Answered by Gayathri S. • Maths tutor
9231 Views

solve the quadratic equation: x^2-4x+3=0

This equation is asking us to find the value(s) of x that when substituted in place of x in the equation x 2 -4x+3 the computed value should equal 0. There three potential methods of solving this equation, t...
TR
Answered by Taylor R. • Maths tutor
10059 Views