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Mathematics 9 Online
OpenStudy (anonymous):

someone please help me solve

OpenStudy (anonymous):

x2 + 5x − 24 = 0

OpenStudy (anonymous):

You can factorise the expression to (x+8)(x-3) = 0, which you can get the solutions from.

OpenStudy (anonymous):

what would be the next step?

OpenStudy (anonymous):

@Fruitbasket

OpenStudy (anonymous):

You have two factors on the right hand side that, when multiplied together, equal zero, meaning that one of the factors must also equal zero. What you do next is find what values of x cause one of the factors to equal zero. For example, x-3=0 when x=3, so x=3 is a solution.

OpenStudy (anonymous):

*left hand side

OpenStudy (anonymous):

so -8,0 and 3,0?

OpenStudy (anonymous):

Yes, exactly, but you only have to say x=-8 and x=3.

OpenStudy (anonymous):

okay thanks!

OpenStudy (anonymous):

You're welcome. :)

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