You would need to facto 2x² + 9x - 35 to get (2x - 5)(x + 7).
We can find this first by dividing the 2x² into 2x and x, which we can put into the brackets:
(2x _ _)(x _ _)
Then we need to find two factors of -35 that have a difference of 9 when one is multiplied by 2, which gives us +7 and -5 as (7 × 2) - 5 = 14 - 5 = 9.
This gives our final answer as:
(2x - 5)(x + 7)
We cannot use foil on this expression as there are no brackets to expand.
I hope this helps!
Answer: the answer is -2
Step-by-step explanation: Reduce the expression, if possible, by cancelling the common factors
Hope this helps! :)
~Zane
Answer:
x = 7/30
Step-by-step explanation:
Identify the LCD; it is 30. 30 is the smallest number divisible by both 3 and 10.
Then we have:
(30/30)x + 20/30 = 27/30.
Clearing out the fractions, we get:
30x + 20 = 27, or 30x = 7
Dividing both sides of this result by 30 yields x = 7/30.
She is 3 years older than her brother and has (x+3) in the equation means that x is being used as her brothers age. (She is adding 3 to her brothers age)
The answer is Amy's brother's age.
Let, the numbers = x,y
Now, x + y = 38
x - y = 50, x = 50 + y
Substitute it into first equation,
50 + y + y = 38
2y = 38 - 50
y = -12 / 2
y = -6
Substitute it into first equation,
x - 6 = 38
x = 38 + 6 = 44
So, your final answer is x = 44 & y = -6
Hope this helps!
