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Mathematics 9 Online
OpenStudy (anonymous):

-a^2=16-8a please solve

OpenStudy (anonymous):

Because the highest power of a is 2 the first step is to rearrange the equation and make the right hand side zero.

OpenStudy (anonymous):

so -a^2-8a-16=0? i know that. i really just need it solved.

OpenStudy (anonymous):

take the a^2 to the other side and it will be positive. Or multiply the whole equation by -1

OpenStudy (anonymous):

is the answe 4, 4?

OpenStudy (anonymous):

Now factorise the left side

OpenStudy (anonymous):

a^2-8a +16=0

OpenStudy (anonymous):

Well done chichi7

OpenStudy (anonymous):

chi., original equation is wrong, because you have -a^2

OpenStudy (anonymous):

plz?

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