Best Answer

To factorise is to find the numbers that divide into the original number by only using prime numbers.

For example factorise 20 =

2 times 2 times 5

Q: Maths. what is to factorise?

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When you factor a number, you break it down into factors that multiply up to the number. For example, 12=3x4. There is also prime factorize when you factor the number into primes. For example, 100=2^2x5^2.

The answer will depend on where the brackets are. In general the solution would be to expand all the brackets, combine like terms and then factorise.

-5

It is: a(7a-8b)

5a(2b + 1)

Related questions

It is the opposite of Expanding The Brackets

Look in an advanced maths book.Improved answer:-If the discriminant of the quadratic expression is less than zero then it's not possible to factor it.

When you factor a number, you break it down into factors that multiply up to the number. For example, 12=3x4. There is also prime factorize when you factor the number into primes. For example, 100=2^2x5^2.

Factorise fully is when brackets are involved in the equation

a²-a = a(a-1)

Type that into the Wolfram Alpha website. It's a maths website that will pretty much do anything to any maths function you require (e.g graph, factorise, integrate etc...) See related links for the website address - alternatively, Google "Wolfram Alpha" and it takes you straight there. Happy maths-ing!

7x2+49x-42 = 7(x2+7x-6)

to put into brackets

you do (245x)

The answer will depend on where the brackets are. In general the solution would be to expand all the brackets, combine like terms and then factorise.

qwertyuiopasdfjk

6(t2s)