Top answers

How do I know the best way to solve a quadratic equation?

There are loads of different ways to solve quadratics, and most of the time there isn't only one right way to solve them. there's three main ways that you can use to solve quadratics: factorisation, completi...
MO
Answered by Megan O. • Maths tutor
4657 Views

Work out the value of 4a + 2b when a = 4 and b = 3.

first substitute all the values you know into the formula (use brackets to make your work clear) 4(4) + 2(3) we know that 2 numbers next to eachother means multiply so expand it 4 x (4) + 2 x (3) using BODMA...
TF
Answered by Tom F. • Maths tutor
11460 Views

What is the multiplication rule in probability?

If presented with an 'AND' statement, multiply the probabilites of each individual event happening by one another,If rolling a die, what is the probability of landing a 1 AND then a 21/6 * 1/6 therefore prob...
NJ
Answered by Nidhish J. • Maths tutor
4698 Views

Rearrange aq - ac = d

Start by factoring out the common term, so in this case a. a(q - c) = d Now divide by a on both sides to isolate the (q - c) (q - c) = d/a Now add c on both sides to make q the subject q = c + d/a
AS
Answered by Avnish S. • Maths tutor
5488 Views

What are surds and how does multiplying them work?

A surd is an irrational number which cannot be expressed as a fraction or a recurring number. E.g. root 2 = 1.4142135…. and it continues (but it does NOT repeat like a recurring fraction though) . E.g. pi wo...
FS
Answered by Febi S. • Maths tutor
9441 Views