find the term that should be added to the expression to form a perfect square trinomial. Write the perfect square trinomial in factored form x^2+5x
In general to make x^2 + bx a perfect square, you add on (b/2)^2 = (b^2)/4
That will give you x^2 + bx + (b^2)/4 which will factor to (x+b/2)^2
Mr jim that is so confusing to me can you break this down some so i understand it
b = ??? in this case
yes please
what is the value of b in this case
would that be five
so (b/2)^2 = (5/2)^2 = 25/4
which means this is the number you add on to make x^2 + 5x a perfect square
so the entire formula would be X^2+5x+25/4
yes that's a perfect square
which factors to....?
i know that sense five is a general number that is in the whole equation
x^2 + bx + (b^2)/4 factors to (x+b/2)^2 b = 5, so x^2+5x+25/4 factors to (x+5/2)^2
ok that makes sense Mr Thompson thank you so much for your time and expertise
sure thing
Join our real-time social learning platform and learn together with your friends!