Hi,
We know that:
a² -- b² = (a -- b)(a + b).
With a = x, and b = 4, we have:
x² -- 16 = x² -- 4² = (x -- 4)(x + 4).
As simple as that. Have you understood ?
Green eyes.
Step-by-step explanation:
-2+8 is the same as 8-2 which equals 6.
X= 4
You add 6x and 10x then divide 16x from 64 which makes x=4
Answer:
4
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
We have given
,
and SP =30
We have to find the slope for regression on Y from X
The slope on Y from X is given by 
As we have given the value of SP =30 and value of 
So slope for regression will be