0
x2+9x+20 We need two brackets, each with x at the beginning. (x ) (x ) Since the 20 is positive, I know the two numbers that multiplied to 20 must have had the same sign (two negatives make a positive, two positives make a positive) Also since the middle term is positive, I know that the two numbers must have been positive as well. So our brackets are (x + ) (x + ) That leaves me with the question - what two numbers multiply to 20 and have a sum of 9 (the coefficient of x) (x + 5) (x + 4)
====================================================
The first answer is the best! its the easiest way to find the answer out. It helped me practice for my test :]
----------------------------------------------------------------------------------------------------------------
Still curious? Ask our experts.
Chat with our AI personalities
Ross
Taiga
ProfessorAdd your answer:
Earn +20 pts
X plus 20 plus 10x equals 20 plus 9x x equals?
x + 20 + 10x = 20 + 9x 11x + 20 = 20 + 9x Subtract 20 from both sides: 11x = 9x Subtract 9x from both sides: 2x = 0 Divide both sides by 2: x = 0
-20 plus 9x equals -17?
-20 + 9x = -17-20 + 17 = -9x-3 = -9x |: (-9)0.333... = xx = 0.333...
9x-6 equals 4x plus 20 find x?
x=5.2
What is 9x plus 8 equals 6x plus 20?
9x + 8 = 6x + 20(- 8 from both sides)9x = 6x + 12(- 6x from both sides)3x = 12(divide both sides by 3)x = 4
What is the answer to 9x plus 3-25 equals 4x-2?
9x+3-25 = 4x-2 5x = 20 x = 4
2X plus 2X plus 9X equals?
it equals 13X.
What is the slope of 9y plus 9x plus 7 equals 8 plus 9x?
The slope is 0.
If x equals 10 and y equals 10 then 9x plus 8y equals?
If x equals 10 and y equals 10, then 9x plus 8y equals 170.
2x plus 3 equals 9x equals?
khjgfsddfghjfghjk
9x plus 9 equals 135?
9x + 9 = 135 9x = 126 x = 14
2x plus 7x equals?
It is 9x
What is 9x plus 27 equals -81?
9x+27 = -81 9x = -81-27 9x = -108 x = -12
