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# Maths Help!! Watch

1. How do I factorise:
a) 2x^4+14x^2+24
b)2x^2-50
c)6x^2-10x+4
d)15x^2+42x-9
Please include steps/working out
2. (Original post by thea_)
How do I factorise:
a) 2x^4+14x^2+24
b)2x^2-50
c)6x^2-10x+4
d)15x^2+42x-9
Please include steps/working out
Well I don't feel like doing your homework for you but I can point you in the right direction:

a) Factor out a 2 and let , replace the x's with X appropriately. Factorise it in terms of X before going back to x's.
b) Factor out a 2. Use difference of two squares whereby (useful to remember this)
c) You can just factor out the 6 then looks for fractions to make up the constant and coefficient of x. Unless you want to use a different method. Personally I like to use this method: https://www.youtube.com/watch?v=r1JAJfmRG5w but I'd recommend factoring out the greatest common factor out of all the coefficients before proceeding with it.
d) Proceed with the same idea as above.
3. Please post your steps/working out.

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