Asked by Alicia
Can someone check my answer please! I'm not sure this is right
x(squared)+7x+10=0
(x+r)(x+s)
=x(squared)+sx+rx+rs
=x(squared)+(r+s)x+rs
x(squared)+(r+s)x+rs=x(squared)+7x+10
r+s=7
rs=10
(2)(5)=10 and 3+4=7
x(squared)+7x+10=(x+5)(x+2)
x(squared)+7x+10=0
(x+r)(x+s)
=x(squared)+sx+rx+rs
=x(squared)+(r+s)x+rs
x(squared)+(r+s)x+rs=x(squared)+7x+10
r+s=7
rs=10
(2)(5)=10 and 3+4=7
x(squared)+7x+10=(x+5)(x+2)
Answers
Answered by
Reiny
yes, you are right,
For these kind of problems why don't you just expand your answer using FOIL to check if you are right?
For these kind of problems why don't you just expand your answer using FOIL to check if you are right?
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