SOLUTION: 10x^2+9x+2 It says to find two numbers whose product is 10 x 2 = 20 whose sum is 9.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: 10x^2+9x+2 It says to find two numbers whose product is 10 x 2 = 20 whose sum is 9.      Log On


   

Question 351767: 10x^2+9x+2

It says to find two numbers whose product is 10 x 2 = 20 whose sum is 9.
Found 2 solutions by stanbon, checkley77:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
4 and 5
Cheers,
Stan H.

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
10x^2+9x+2
(5x+2)(2x+1)ans.
*********************
x*y=20
x+y=9 or x=9-y
(9-y)y=20
9y-y^2=20
y^2-9y+20=0
(y-4)(y-5)=0
y-4=0
y=4 ans
y-5=0
y=5 ans.
Proof:
4*5=20
20=20
4+5=9