hi,

i have to work this out, its a quadratic equation:

x^2+8x+16=0

would the brackets be - (x+4) (x+4) because 4x4=16 and 4+4=8???

thanks

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- Oct 7th 2011, 06:27 AMandyboy179quadratic expressions
hi,

i have to work this out, its a quadratic equation:

x^2+8x+16=0

would the brackets be - (x+4) (x+4) because 4x4=16 and 4+4=8???

thanks - Oct 7th 2011, 07:05 AMSironRe: quadratic expressions
Indeed:

$\displaystyle x^2+8x+16=0 \Leftrightarrow (x+4)(x+4)=0 \Leftrightarrow (x+4)^2=0$ - Oct 7th 2011, 04:12 PMmr fantasticRe: quadratic expressions