Answer:
10
Step-by-step explanation:

4 x 5 = 20
= 10
Answer:
(x + 3)(x + 5)
Step-by-step explanation:
The given expression is x^2 +8x + 15
Now find the factor of 15 such that when you add the factors, we have to get 8
The right factors of 15.
5 * 3 = 15
5 + 3 = 8
The right factors are 3 and 5.
x^2 + 8x + 15 = (x + 3)(x + 5)
Therefore, x^2 + 8x + 15 = (x + 3)(x + 5)
Thank you.
Answer:
3(x - 5)(x + 1).
Step-by-step explanation:
3x^2 - 12x - 15
Dividing through by 3:
= 3(x^2 - 4x - 5)
We need 2 numbers whose sum is -4 and whose product = -5. That is -5 and +1 , so the factors are:
3(x - 5)(x + 1).
The answer should be A. 36.
Answer:
y=3x ( the'=' sign is the proportionality sign)
Step-by-step explanation:
x = 1 , 2 , 3 , 4
y = 3 , 6 , 9 , 12
You are multiplying by 3 to get to y
1 x 3 = 3
2 x 3 = 6
3 x 3 = 9
4 x 3 = 12