SOLUTION: I need help on factorising quadratic expressions:
It says to factorise fully - {{{ 2(x+3)^2-10 }}}
The textbook answer is {{{ 2(x+3+sqrt(5))(x+3-sqrt(5)) }}}
However I got a
Algebra.Com
Question 978023: I need help on factorising quadratic expressions:
It says to factorise fully -
The textbook answer is
However I got an answer of
I used difference of two squares.
Thankyou
Found 2 solutions by Alan3354, jim_thompson5910:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
You didn't divide the -10 by 2.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
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Hopefully that helps. If not, then let me know.
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